Evidence map›Paper›PMID 32409731›Full record

ArticleMolecular psychiatry2021

Longitudinal brain connectivity changes and clinical evolution in Parkinson's disease.

Massimo Filippi, Silvia Basaia, Elisabetta Sarasso, Tanja Stojkovic, Iva Stankovic, Andrea Fontana, Aleksandra Tomic, Noemi Piramide, Elka Stefanova, Vladana Markovic and 2 more

Abstract read
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In one paragraph

Article in Molecular psychiatry, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed, 1 pooled it
4.7field-weighted citation impact, top 4% 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

42 citing papers in PubMed, 1 synthesis or guideline pooled it, 72 citations in OpenAlex.

  1. Pooled it
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  16. Stepwise Functional Brain Architecture Correlates with Atrophy in Progressive Supranuclear Palsy.Movement disorders : official journal of the Movement Disorder Society · 2024
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  18. Association of synuclein alpha (Quantitative imaging in medicine and surgery · 2024
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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

12 authors at 4 institutions in 2 countries.

Massimo FilippiNeuroimaging Research Unit, Institute of Experimental Neurology, Division of Neuroscience, IRCCS San Raffaele Scientific Institute, Milan, Italy. filippi.massimo@hsr.it.ORCID http://orcid.org/0000-0002-5485-0479
Silvia BasaiaNeuroimaging Research Unit, Institute of Experimental Neurology, Division of Neuroscience, IRCCS San Raffaele Scientific Institute, Milan, Italy.
Elisabetta SarassoNeuroimaging Research Unit, Institute of Experimental Neurology, Division of Neuroscience, IRCCS San Raffaele Scientific Institute, Milan, Italy.
Tanja StojkovicClinic of Neurology, School of Medicine, University of Belgrade, Belgrade, Serbia.
Iva StankovicClinic of Neurology, School of Medicine, University of Belgrade, Belgrade, Serbia.
Andrea FontanaUnit of Biostatistics, Fondazione IRCCS Casa Sollievo della Sofferenza, San Giovanni Rotondo, Foggia, Italy.ORCID http://orcid.org/0000-0002-6660-5315
Aleksandra TomicClinic of Neurology, School of Medicine, University of Belgrade, Belgrade, Serbia.
Noemi PiramideNeuroimaging Research Unit, Institute of Experimental Neurology, Division of Neuroscience, IRCCS San Raffaele Scientific Institute, Milan, Italy.
Elka StefanovaClinic of Neurology, School of Medicine, University of Belgrade, Belgrade, Serbia.
Vladana MarkovicClinic of Neurology, School of Medicine, University of Belgrade, Belgrade, Serbia.
Vladimir S KosticClinic of Neurology, School of Medicine, University of Belgrade, Belgrade, Serbia.
Federica AgostaNeuroimaging Research Unit, Institute of Experimental Neurology, Division of Neuroscience, IRCCS San Raffaele Scientific Institute, Milan, Italy.
University of Belgrade · RSVita-Salute San Raffaele University · ITCasa Sollievo della Sofferenza · ITIstituti di Ricovero e Cura a Carattere Scientifico · IT

Funding

Ministarstvo Prosvete, Nauke i Tehnološkog Razvoja (Ministry of Education, Science and Technological Development of the Republic of Serbia) 175090
6 · The paper itself

Abstract

Longitudinal connectivity studies might guide our understanding of the underlying neurodegenerative processes. We report the results of a longitudinal study in patients at different stages of Parkinson's disease (PD), who performed motor and non-motor evaluations and serial resting state (RS) functional MRI (fMRI). Cluster analysis was applied to demographic and clinical data of 146 PD patients to define disease subtypes. Brain network functional alterations were assessed at baseline in PD relative to 60 healthy controls and every year for a maximum of 4 years in PD groups. Progression of brain network changes were compared between patient clusters using RS fMRI. The contribution of network changes in predicting clinical deterioration was explored. Two main PD clusters were identified: mild PD (86 patients) and moderate-to-severe PD (60 patients), with the latter group being older and having earlier onset, longer PD duration, more severe motor, non-motor and cognitive deficits. Within the mild patient cluster, two clinical subtypes were further identified: mild motor-predominant (43) and mild-diffuse (43), with the latter being older and having more frequent non-motor symptoms. Longitudinal functional connectivity changes vary across patients in different disease stages with the coexistence of hypo- and hyper-connectivity in all subtypes. RS fMRI changes were associated with motor, cognitive and non-motor evolution in PD patients. Baseline RS fMRI presaged clinical and cognitive evolution. Our network perspective was able to define trajectories of functional architecture changes according to PD stages and prognosis. RS fMRI may be an early biomarker of PD motor and non-motor progression.

Indexed as

Parkinson DiseaseBrainBrain MappingHumansLongitudinal StudiesMagnetic Resonance Imaging

Identifiers

PMID32409731
OpenAlexW3025700754

What OpenQuestion holds

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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.