Evidence map›Paper›PMID 29573246›Full record

ArticleJournal of Korean medical science2018

Non-Motor Symptom Burdens Are Not Associated with Iron Accumulation in Early Parkinson's Disease: a Quantitative Susceptibility Mapping Study.

Chaewon Shin, Seon Lee, Jee Young Lee, Jung Hyo Rhim, Sun Won Park

Abstract read
In one paragraph

Article in Journal of Korean medical science, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 3 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

11 citing papers in PubMed, 3 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Extra-basal ganglia iron content and non-motor symptoms in drug-naïve, early Parkinson's disease.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2021
    Article
  10. Article
  11. 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

5 authors.

Chaewon ShinDepartment of Neurology, Kyung Hee University Medical Center, Seoul, Korea.ORCID https://orcid.org/0000-0002-4157-492X
Seon LeeDepartment of Mechanical and Aerospace Engineering, Seoul National University, Seoul, Korea.ORCID https://orcid.org/0000-0002-7451-1706
Jee Young LeeDepartment of Neurology, Seoul National University-Seoul Metropolitan Government Boramae Medical Center, Seoul, Korea.ORCID https://orcid.org/0000-0002-9120-2075
Jung Hyo RhimDepartment of Radiology, Seoul National University-Seoul Metropolitan Government Boramae Medical Center, Seoul, Korea.ORCID https://orcid.org/0000-0001-5822-9770
Sun Won ParkDepartment of Radiology, Seoul National University-Seoul Metropolitan Government Boramae Medical Center, Seoul, Korea.ORCID https://orcid.org/0000-0002-5063-2685

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundQuantitative susceptibility mapping (QSM) has been used to measure iron accumulation in the deep nuclei of patients with Parkinson's disease (PD). This study examined the relationship between non-motor symptoms (NMSs) and iron accumulation in the deep nuclei of patients with PD.

methodsThe QSM data were acquired from 3-Tesla magnetic resonance imaging (MRI) in 29 patients with early PD and 19 normal controls. The Korean version of the NMS scale (K-NMSS) was used for evaluation of NMSs in patients. The patients were divided into high NMS and low NMS groups. The region-of-interest analyses were performed in the following deep nuclei: red nucleus, substantia nigra pars compacta, substantia nigra pars reticulata, dentate nucleus, globus pallidus, putamen, and head of the caudate nucleus.

resultsThirteen patients had high NMS scores (total K-NMSS score, mean = 32.1), and 16 had low NMS scores (10.6). The QSM values in the deep were not different among the patients with high NMS scores, low NMS scores, and controls. The QSM values were not correlated linearly with K-NMSS total score after adjusting the age at acquisition of brain MRI.

conclusionThe study demonstrated that the NMS burdens are not associated with iron accumulation in the deep nuclei of patients with PD. These results suggest that future neuroimaging studies on the pathology of NMSs in PD should use more specific and detailed clinical tools and recruit PD patients with severe NMSs.

Indexed as

AgedBasal GangliaBrain MappingCase-Control StudiesFemaleHumansIronMagnetic Resonance ImagingMaleMiddle AgedParkinson DiseaseSeverity of Illness IndexIronBasal GangliaIronMagnetic Resonance ImagingParkinson Disease

Identifiers

PMID29573246
PMCPMC5865060

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.