Evidence map›Paper›PMID 30923574›Full record

ArticleTherapeutic advances in neurological disorders2019

Cerebral blood flow and cerebrovascular reactivity correlate with severity of motor symptoms in Parkinson's disease.

Laura Pelizzari, Maria Marcella Laganà, Federica Rossetto, Niels Bergsland, Mirco Galli, Giuseppe Baselli, Mario Clerici, Raffaello Nemni, Francesca Baglio

Abstract read
In one paragraph

Article in Therapeutic advances in neurological disorders, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed, 1 pooled it
–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

30 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  11. Parkinson's disease cerebrovascular reactivity pattern: A feasibility study.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2024
    Article
  12. Review
  13. Abnormal Cerebrovascular Activity, Perfusion, and Glymphatic Clearance in Lewy Body Diseases.Movement disorders : official journal of the Movement Disorder Society · 2024
    Review
  14. Review
  15. Reduced and Delayed Cerebrovascular Reactivity in Patients with Parkinson's Disease.Movement disorders : official journal of the Movement Disorder Society · 2023
    Article
  16. Cerebral blood flow regulates iron overload in the cerebral nuclei of hemodialysis patients with anemia.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2023
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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.

Laura PelizzariIRCCS, Fondazione Don Carlo Gnocchi, Milan, Italy.ORCID https://orcid.org/0000-0002-7563-6519
Maria Marcella LaganàIRCCS, Fondazione Don Carlo Gnocchi, Milan, Italy.
Federica RossettoIRCCS, Fondazione Don Carlo Gnocchi, Milan, Italy.
Niels BergslandIRCCS, Fondazione Don Carlo Gnocchi, Milan, Italy.
Mirco GalliIRCCS, Fondazione Don Carlo Gnocchi, Milan, Italy.
Giuseppe BaselliDepartment of Electronics, Information and Bioengineering, Politecnico di Milano, Milan, Italy.
Mario ClericiIRCCS, Fondazione Don Carlo Gnocchi, Milan, Italy.
Raffaello NemniIRCCS, Fondazione Don Carlo Gnocchi, Milan, Italy.
Francesca BaglioIRCCS, Fondazione Don Carlo Gnocchi, CADiTeR, Via Alfonso Capecelatro 66, Milan, Italy.ORCID https://orcid.org/0000-0002-6145-5274

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundParkinson's disease (PD) is a progressive neurodegenerative disorder that is mainly characterized by movement dysfunction. Neurovascular unit (NVU) disruption has been proposed to be involved in the disease, but its role in PD neurodegenerative mechanisms is still unclear. The aim of this study was to investigate cerebral blood flow (CBF) and cerebrovascular reactivity (CVR) within the regions belonging to the motor network, in patients with mild to moderate stages of PD.

methodsTwenty-eight PD patients (66.6 ± 8.6 years, 22 males, median [interquartile range, IQR] Hoehn & Yahr = 1.5 [1-1.9]) and 32 age- and sex-matched healthy controls (HCs) were scanned with arterial spin labeling (ASL) magnetic resonance imaging (MRI) for CBF assessment. ASL MRI was also acquired in hypercapnic conditions to induce vasodilation and subsequently allow for CVR measurement in a subgroup of 13 PD patients and 13 HCs. Median CBF and CVR were extracted from cortical and subcortical regions belonging to the motor network and compared between PD patients and HCs. In addition, the correlation between these parameters and the severity of PD motor symptoms [quantified with Unified Parkinson's Disease Rating Scale part III (UPDRS III)] was assessed. The false discovery rate (FDR) method was used to correct for multiple comparisons.

resultsNo significant differences in terms of CBF and CVR were found between PD patients and HCs. Positive significant correlations were observed between CBF and UPDRS III within the precentral gyrus, postcentral gyrus, supplementary motor area, striatum, pallidum, thalamus, red nucleus, and substantia nigra (pFDR < 0.05). Conversely, significant negative correlation between CVR and UPDRS III was found in the corpus striatum (pFDR < 0.05).

conclusionCBF and CVR assessment provides information about NVU integrity in an indirect and noninvasive way. Our findings support the hypothesis of NVU involvement at the mild to moderate stages of PD, suggesting that CBF and CVR within the motor network might be used as either diagnostic or prognostic markers for PD.

Indexed as

arterial spin labelingcerebral blood flowcerebrovascular reactivityParkinson’s disease

Identifiers

PMID30923574
PMCPMC6431769

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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.