Evidence map›Paper›PMID 34345972›Full record

ArticleJournal of neurology2022

Sex differences in brain atrophy and cognitive impairment in Parkinson's disease patients with and without probable rapid eye movement sleep behavior disorder.

Javier Oltra, Barbara Segura, Carme Uribe, Gemma C Monté-Rubio, Anna Campabadal, Anna Inguanzo, Jèssica Pardo, Maria J Marti, Yaroslau Compta, Francesc Valldeoriola and 2 more

Open access · hybridAbstract read
In one paragraph

Article in Journal of neurology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 1 pooled it
3.5field-weighted citation impact, top 6% 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

18 citing papers in PubMed, 1 synthesis or guideline pooled it, 39 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Review
  5. Article
  6. Article
  7. Sex differences in brain atrophy in dementia with Lewy bodies.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2024
    Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. MRI findings in movement disorders and associated sleep disturbances.American journal of nuclear medicine and molecular imaging · 2023
    Review
  13. Review
  14. The X factor in neurodegeneration.The Journal of experimental medicine · 2022
    Article
  15. Article
  16. Article
  17. Article
  18. 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

12 authors at 4 institutions in 2 countries.

Javier OltraMedical Psychology Unit, Department of Medicine, Institute of Neurosciences, University of Barcelona, Barcelona, Spain.ORCID http://orcid.org/0000-0002-9268-4504
Barbara SeguraMedical Psychology Unit, Department of Medicine, Institute of Neurosciences, University of Barcelona, Barcelona, Spain. bsegura@ub.edu.ORCID http://orcid.org/0000-0002-9673-5479
Carme UribeMedical Psychology Unit, Department of Medicine, Institute of Neurosciences, University of Barcelona, Barcelona, Spain.ORCID http://orcid.org/0000-0002-1415-687X
Gemma C Monté-RubioMedical Psychology Unit, Department of Medicine, Institute of Neurosciences, University of Barcelona, Barcelona, Spain.ORCID http://orcid.org/0000-0002-3532-2224
Anna CampabadalMedical Psychology Unit, Department of Medicine, Institute of Neurosciences, University of Barcelona, Barcelona, Spain.ORCID http://orcid.org/0000-0002-2833-4884
Anna InguanzoMedical Psychology Unit, Department of Medicine, Institute of Neurosciences, University of Barcelona, Barcelona, Spain.ORCID http://orcid.org/0000-0003-0879-5875
Jèssica PardoMedical Psychology Unit, Department of Medicine, Institute of Neurosciences, University of Barcelona, Barcelona, Spain.ORCID http://orcid.org/0000-0003-4665-4213
Maria J MartiInstitute of Biomedical Research August Pi i Sunyer (IDIBAPS), Barcelona, Catalonia, Spain.ORCID http://orcid.org/0000-0002-3874-967X
Yaroslau ComptaInstitute of Biomedical Research August Pi i Sunyer (IDIBAPS), Barcelona, Catalonia, Spain.ORCID http://orcid.org/0000-0001-6443-0104
Francesc ValldeoriolaInstitute of Biomedical Research August Pi i Sunyer (IDIBAPS), Barcelona, Catalonia, Spain.ORCID http://orcid.org/0000-0002-8680-4274
Alex IranzoInstitute of Biomedical Research August Pi i Sunyer (IDIBAPS), Barcelona, Catalonia, Spain.ORCID http://orcid.org/0000-0002-5618-8271
Carme JunqueMedical Psychology Unit, Department of Medicine, Institute of Neurosciences, University of Barcelona, Barcelona, Spain.ORCID http://orcid.org/0000-0002-6381-3063
Biomedical Research Networking Center on Neurodegenerative Diseases · ESConsorci Institut D'Investigacions Biomediques August Pi I Sunyer · ESUniversitat de Barcelona · ESCentre for Addiction and Mental Health · CA

Funding

Agencia Estatal de Investigación PSI2017- 86930-PEuropean Regional Development Fund PSI2017- 86930-PEuropean Social Fund PRE2018-086675Generalitat de Catalunya 2017SGR748Horizon 2020 FIS/FEDERHorizon 2020 Marie Sklodowska-Curie fellowship. Grant agreement: 888692Ministerio de Ciencia, Innovación y Universidades MDM-2017-0729Ministerio de Ciencia, Innovación y Universidades PRE2018-086675Ministerio de Economía y Competitividad PSI2017- 86930-PUniversitat de Barcelona APIF predoctoral fellowship
6 · The paper itself

Abstract

backgroundThe presence of rapid eye movement sleep behavior disorder (RBD) contributes to increase cognitive impairment and brain atrophy in Parkinson's disease (PD), but the impact of sex is unclear. We aimed to investigate sex differences in cognition and brain atrophy in PD patients with and without probable RBD (pRBD).

methodsMagnetic resonance imaging and cognition data were obtained for 274 participants from the Parkinson's Progression Marker Initiative database: 79 PD with pRBD (PD-pRBD; male/female, 54/25), 126 PD without pRBD (PD-non pRBD; male/female, 73/53), and 69 healthy controls (male/female, 40/29). FreeSurfer was used to obtain volumetric and cortical thickness data.

resultsMales showed greater global cortical and subcortical gray matter atrophy than females in the PD-pRBD group. Significant group-by-sex interactions were found in the pallidum. Structures showing a within-group sex effect in the deep gray matter differed, with significant volume reductions for males in one structure in in PD-non pRBD (brainstem), and three in PD-pRBD (caudate, pallidum and brainstem). Significant group-by-sex interactions were found in Montreal Cognitive Assessment (MoCA) and Symbol Digits Modalities Test (SDMT). Males performed worse than females in MoCA, phonemic fluency and SDMT in the PD-pRBD group.

conclusionMale sex is related to increased cognitive impairment and subcortical atrophy in de novo PD-pRBD. Accordingly, we suggest that sex differences are relevant and should be considered in future clinical and translational research.

Indexed as

Cognitive DysfunctionParkinson DiseaseREM Sleep Behavior DisorderAtrophyBrainFemaleHumansMaleSex CharacteristicsCognitive impairmentGray matter atrophyMagnetic resonance imagingParkinson’s diseaseREM sleep behavior disorderSex differences

Identifiers

PMID34345972
PMCPMC8857118
OpenAlexW3191289736

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.