Evidence map›Paper›PMID 34930292›Full record

ArticleJournal of nanobiotechnology2021

Polydopamine nanoparticles attenuate retina ganglion cell degeneration and restore visual function after optic nerve injury.

Xiaotong Lou, Yuanyuan Hu, Hong Zhang, Jia Liu, Yin Zhao

Open access · goldAbstract read
In one paragraph

Article in Journal of nanobiotechnology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed
4.9field-weighted citation impact, top 4% 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

39 citing papers in PubMed, 75 citations in OpenAlex.

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  18. Multifunctional Nanozyme PDA-CrInternational journal of nanomedicine · 2025
    Article
  19. Article
  20. Review: Neuroprotective Nanocarriers in Glaucoma.Pharmaceuticals (Basel, Switzerland) · 2024
    Review
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 at 2 institutions in 1 country.

Xiaotong LouDepartment of Ophthalmology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China.
Yuanyuan HuDepartment of Ophthalmology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China.
Hong ZhangDepartment of Ophthalmology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China.
Jia LiuResearch Center for Tissue Engineering and Regenerative Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China. jialiu1207@hust.edu.cn.
Yin ZhaoDepartment of Ophthalmology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China. zhaoyin85@hust.edu.cn.ORCID http://orcid.org/0000-0002-1470-7184
Tongji Hospital · CNUnion Hospital · CN

Funding

National Natural Science Foundation of China 31800868National Natural Science Foundation of China 82072068
6 · The paper itself

Abstract

backgroundOxidative stress contributes to retina ganglion cells (RGCs) loss in variety of ocular diseases, including ocular trauma, ocular vein occlusion, and glaucoma. Scavenging the excessed reactive oxygen species (ROS) in retinal neurovascular unit could be beneficial to RGCs survival. In this study, a polydopamine (PDA)-based nanoplatform is developed to protect RGCs.

resultsThe PDA nanoparticles efficiently eliminate multi-types of ROS, protect endothelia and neuronal cells from oxidative damage, and inhibit microglia activation in retinas. In an optic nerve crush (ONC) model, single intravitreal injection of PDA nanoparticles could significantly attenuate RGCs loss via eliminating ROS in retinas, reducing the inflammatory response and maintaining barrier function of retinal vascular endothelia. Comparative transcriptome analysis of the retina implied that PDA nanoparticles improve RGCs survival probably by altering the expression of genes involved in inflammation and ROS production. Importantly, as a versatile drug carrier, PDA nanoparticles could deliver brimonidine (a neuroprotection drug) to synergistically attenuate RGCs loss and promote axon regeneration, thus restore visual function.

conclusionsThe PDA nanoparticle-based therapeutic nanoplatform displayed excellent performance in ROS elimination, providing a promising probability for treating retinal degeneration diseases.

Indexed as

AnimalsBrimonidine TartrateCell SurvivalDisease Models, AnimalHumansHuman Umbilical Vein Endothelial CellsHydrogen PeroxideIndolesMacrophagesMaleMiceMice, Inbred C57BLNanoparticlesNitric Oxide Synthase Type IIOptic Nerve InjuriesPolymersBrimonidine TartrateHydrogen PeroxideIndolesNitric Oxide Synthase Type IIpolydopaminePolymersReactive Oxygen SpeciesDrug deliveryOptic nerve injuryPolydopamine nanoparticleReactive oxygen species scavengingRetina ganglion cell

Identifiers

PMID34930292
PMCPMC8686547
OpenAlexW4225533067

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.