Evidence map›Paper›PMID 35250544›Full record

ArticleFrontiers in aging neuroscience2022

Retinal Microvascular Density Was Associated With the Clinical Progression of Parkinson's Disease.

Bei Xu, Xin Wang, Jifeng Guo, Huizhuo Xu, Beisha Tang, Bin Jiao, Lu Shen

Open access · goldAbstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Frontiers in aging neuroscience, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 4 pooled it
3.2field-weighted citation impact, top 8% 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

15 citing papers in PubMed, 4 syntheses or guidelines pooled it, 25 citations in OpenAlex.

  1. Retinal microvascular alterations in Parkinson's disease: visual analysis and meta-analysis.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2025
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  6. Multimodal imaging in neuro-ophthalmology.Indian journal of ophthalmology · 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

7 authors at 2 institutions in 1 country.

Bei XuEye Center of Xiangya Hospital, Central South University, Changsha, China.
Xin WangDepartment of Neurology, Xiangya Hospital, Central South University, Changsha, China.
Jifeng GuoDepartment of Neurology, Xiangya Hospital, Central South University, Changsha, China.
Huizhuo XuEye Center of Xiangya Hospital, Central South University, Changsha, China.
Beisha TangDepartment of Neurology, Xiangya Hospital, Central South University, Changsha, China.
Bin JiaoDepartment of Neurology, Xiangya Hospital, Central South University, Changsha, China.
Lu ShenDepartment of Neurology, Xiangya Hospital, Central South University, Changsha, China.
Xiangya Hospital Central South University · CNCentral South University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundRetinal microvascular density has been studied in neurodegenerative diseases, whereas patients with Parkinson's disease (PD) at different clinical stages have been rarely investigated. The present study aimed to evaluate the microvascular variations in superficial retinal capillary plexus (SCP) in patients with PD on different Hoehn-Yahr (H-Y) stages by optical coherence tomography angiography (OCTA), as well as determine their relationships with clinical parameters.

methodsIn total, 115 patients with PD and 67 healthy controls (HCs) were recruited. The PD group was divided into three groups based on the H-Y stage. The OCTA examination was performed in all participants, and the macular vessel density (m-VD), peripapillary vessel density (p-VD), and foveal avascular zone (FAZ) area were measured.

resultsThe m-VD in all regions, p-VD in center [6.1 (4.8, 6.95) mm

conclusionOCTA has the potential to non-invasively detect the microvascular changes in patients with PD with different clinical stages

Indexed as

diagnosisHoehn-Yahr stageoptical coherence tomography angiography (OCTA)Parkinson’s diseasevessel density

Identifiers

PMID35250544
PMCPMC8891808
OpenAlexW4213206332

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.