Evidence map›Paper›PMID 30554085›Full record

ArticleNeurobiology of aging2019

Iron-related nigral degeneration influences functional topology mediated by striatal dysfunction in Parkinson's disease.

Xiaojun Guan, Yuyao Zhang, Hongjiang Wei, Tao Guo, Qiaoling Zeng, Cheng Zhou, Jiaqiu Wang, Ting Gao, Min Xuan, Quanquan Gu and 6 more

Abstract read
In one paragraph

Article in Neurobiology of aging, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed, 2 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

34 citing papers in PubMed, 2 syntheses or guidelines pooled it.

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  4. Diagnostic Potential of Macromolecular Proton Fraction Mapping Combined with Quantitative Susceptibility Mapping as a Subcortical Biomarker for Parkinson's Disease.Magnetic resonance in medical sciences : MRMS : an official journal of Japan Society of Magnetic Resonance in Medicine · 2026
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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

16 authors.

Xiaojun GuanDepartment of Radiology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China; Department of Electrical Engineering and Computer Sciences, University of California, Berkeley, CA, USA.
Yuyao ZhangDepartment of Electrical Engineering and Computer Sciences, University of California, Berkeley, CA, USA.
Hongjiang WeiDepartment of Electrical Engineering and Computer Sciences, University of California, Berkeley, CA, USA.
Tao GuoDepartment of Radiology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.
Qiaoling ZengDepartment of Radiology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.
Cheng ZhouDepartment of Radiology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.
Jiaqiu WangDepartment of Neurology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.
Ting GaoDepartment of Neurology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.
Min XuanDepartment of Radiology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.
Quanquan GuDepartment of Radiology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.
Xiaojun XuDepartment of Radiology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.
Peiyu HuangDepartment of Radiology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.
Jiali PuDepartment of Neurology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.
Baorong ZhangDepartment of Neurology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.
Chunlei LiuDepartment of Electrical Engineering and Computer Sciences, University of California, Berkeley, CA, USA; Helen Wills Neuroscience Institute, University of California, Berkeley, CA, USA. Electronic address: chunlei.liu@berkeley.edu.
Minming ZhangDepartment of Radiology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China. Electronic address: zhangminming@zju.edu.cn.

Funding

Ultra-Resolution Imaging of Brain Circuitry and its Development in Mental HealthR01MH096979 · NIMH · UNIVERSITY OF CALIFORNIA BERKELEY · PI LIU, CHUNLEI · 2013 to 2017
$1.8M
NIMH NIH HHS R01 MH096979
6 · The paper itself

Abstract

In Parkinson's disease (PD), iron accumulation in the substantia nigra (SN) exacerbates oxidative stress and α-synuclein aggregation, leading to neuronal death. However, the influence of iron-related nigral degeneration on the subcortical function and global network configuration in PD remains unknown. Ninety PD patients and 38 normal controls underwent clinical assessments and multimodality magnetic resonance imaging scans. Iron accumulation in the inferior SN and disrupted functional connectivity between the bilateral striatums were observed in PD, and negative correlation between them was found in the whole population. The binarized functional network exhibited enhanced global efficiency and reduced local efficiency while the weighted functional network exhibited reduction in both, and both changes were correlated with nigral iron accumulation in PD. Mediation analysis demonstrated that the functional connectivity between bilateral striatums was a mediator between the nigral iron accumulation and weighted functional network alterations. In conclusion, our findings reveal that iron-related nigral degeneration possibly influences the functional topology mediated by striatal dysfunction, which extends the scientific understanding of PD pathogenesis.

Indexed as

Agedalpha-SynucleinCorpus StriatumFemaleGray MatterHumansImage Processing, Computer-AssistedIronMaleMiddle AgedParkinson DiseaseSubstantia Nigraalpha-SynucleinIronDiffusion tensor imagingFunctional magnetic resonance imagingIronParkinson's diseaseQuantitative susceptibility mapping

Identifiers

PMID30554085
PMCPMC6538269

What OpenQuestion holds

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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.