Evidence map›Paper›PMID 33828454›Full record

ArticleFrontiers in neuroscience2021

Nigral Iron Deposition Is Associated With Levodopa-Induced Dyskinesia in Parkinson's Disease.

Tianbin Song, Jiping Li, Shanshan Mei, Xiaofei Jia, Hongwei Yang, Yongquan Ye, Jianmin Yuan, Yuqing Zhang, Jie Lu

Open access · goldAbstract read
In one paragraph

Article in Frontiers in neuroscience, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
1.0field-weighted citation impact, top 22% 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

9 citing papers in PubMed, 11 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Levodopa-induced dyskinesia: brain iron deposition as a new hypothesis.Biometals : an international journal on the role of metal ions in biology, biochemistry, and medicine · 2024
    Review
  5. Iron Deposition in Parkinson's Disease: A Mini-Review.Cellular and molecular neurobiology · 2024
    Review
  6. Article
  7. Article
  8. Review
  9. 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

9 authors at 2 institutions in 2 countries.

Tianbin SongDepartment of Radiology and Nuclear Medicine, Xuanwu Hospital, Capital Medical University, Beijing, China.
Jiping LiBeijing Institute of Functional Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China.
Shanshan MeiDepartment of Neurology, Xuanwu Hospital, Capital Medical University, Beijing, China.
Xiaofei JiaBeijing Institute of Functional Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China.
Hongwei YangDepartment of Radiology and Nuclear Medicine, Xuanwu Hospital, Capital Medical University, Beijing, China.
Yongquan YeUIH America, Inc., Houston, TX, United States.
Jianmin YuanCentral Research Institute, UIH Group, Shanghai, China.
Yuqing ZhangBeijing Institute of Functional Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China.
Jie LuDepartment of Radiology and Nuclear Medicine, Xuanwu Hospital, Capital Medical University, Beijing, China.
Capital Medical University · CNUniversity of America · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo investigate iron deposition in the substantia nigra (SN) of Parkinson's disease (PD) patients associated with levodopa-induced dyskinesia (LID).

methodsSeventeen PD patients with LID, 17 PD patients without LID, and 16 healthy controls were recruited for this study. The mean QSM values of the whole, left, and right SN were compared among the three groups. A multivariate logistic regression model was constructed to determine the factors associated with increased risk of LID. The receiver operating characteristic curve of the QSM value of SN in discriminating PD with and without LID was evaluated.

resultsThe mean QSM values of the whole and right SN in the PD with LID were higher than those in the PD without LID (

conclusionThis study provides the evidence of higher iron deposition in the SN of PD patients with LID than those without LID, suggesting that the QSM value of the SN may be a potential early diagnostic neuroimaging biomarker for LID.

Indexed as

dyskinesialevodopaParkinsion’s diseasequantitative susceptibility mappingsubstantia nigra

Identifiers

PMID33828454
PMCPMC8019898
OpenAlexW3138393542

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.