Evidence map›Paper›PMID 20484596›Full record

ArticleInvestigative ophthalmology & visual science2010

Genetic deletion of the adenosine A2A receptor confers postnatal development of relative myopia in mice.

Xiangtian Zhou, Qinzhu Huang, Jianhong An, Runxia Lu, Xiaoyi Qin, Liqin Jiang, Yuan Li, Jianhua Wang, Jiangfan Chen, Jia Qu

Open access · bronzeAbstract read
In one paragraph

Article in Investigative ophthalmology & visual science, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
3.0field-weighted citation impact, top 10% 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

32 citing papers in PubMed, 45 citations in OpenAlex.

  1. Article
  2. Inhibition of Retinal AdoRA2a Activity Attenuates Myopia Progression.Investigative ophthalmology & visual science · 2026
    Article
  3. Decreased scleral Wnt5aNature communications · 2025
    Article
  4. Review
  5. Critical role of lipid metabolism in axial myopia development.International journal of ophthalmology · 2025
    Review
  6. Insights into Myopia from Mouse Models.Annual review of vision science · 2024
    Review
  7. Review
  8. Review
  9. Article
  10. Article
  11. Intravitreal injection of adenosine AScientific reports · 2019
    Article
  12. IMI - Report on Experimental Models of Emmetropization and Myopia.Investigative ophthalmology & visual science · 2019
    Review
  13. Article
  14. Article
  15. Scleral hypoxia is a target for myopia control.Proceedings of the National Academy of Sciences of the United States of America · 2018
    Article
  16. Article
  17. Article
  18. Association of Body Length with Ocular Parameters in Mice.Optometry and vision science : official publication of the American Academy of Optometry · 2017
    Article
  19. Article
  20. 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

10 authors at 3 institutions in 3 countries.

Xiangtian ZhouSchool of Optometry and Ophthalmology and Eye Hospital, Wenzhou Medical College, Wenzhou, China.
Qinzhu Huang
Jianhong An
Runxia Lu
Xiaoyi Qin
Liqin Jiang
Yuan Li
Jianhua Wang
Jiangfan Chen
Jia Qu
Wenzhou Medical University · CNMinistry of Health of the Russian Federation · RUUniversity of Miami · US

Funding

A1/A2A Receptors and Caffeine PsychostimulationR01NS048995 · NINDS · BOSTON UNIVERSITY MEDICAL CAMPUS · PI CHEN, JIANG-FAN · 2005 to 2009
$1.6M
NINDS NIH HHS R01 NS048995
6 · The paper itself

Abstract

purposeTo critically evaluate whether the adenosine A2A receptor (A2AR) plays a role in postnatal refractive development in mice.

methodsCustom-built biometric systems specifically designed for mice were used to assess the development of relative myopia by examining refraction and biometrics in A2AR knockout (KO) mice and wild-type (WT) littermates between postnatal days (P)28 and P56. Ocular dimensions were measured by customized optical coherence tomography (OCT), refractive state by eccentric infrared photorefraction (EIR), and corneal radius of curvature by modified keratometry. Scleral collagen diameter and density were examined by electron microscopy on P35. The effect of A2AR activation on collagen mRNA expression and on soluble collagen production was examined in cultured human scleral fibroblasts by real-time RT-PCR and a collagen assay kit.

resultsCompared with WT littermates, the A2AR KO mice displayed relative myopia (average difference, 5.1 D between P28 and P35) and associated increases in VC depth and axial length from P28 to P56. Furthermore, the myopic shift in A2AR KO mice was associated with ultrastructural changes in the sclera: Electron microscopy revealed denser collagen fibrils with reduced diameter in A2AR KO compared with WT. Last, A2AR activation induced expression of mRNAs for collagens I, III, and V and increased production of soluble collagen in cultured human scleral fibroblasts.

conclusionsGenetic deletion of the A2AR promotes development of relative myopia with increased axial length and altered scleral collagen fiber structure during postnatal development in mice. Thus, the A2AR may be important in normal refractive development.

Indexed as

Gene Expression Regulation, DevelopmentalAnimalsAnterior Eye SegmentCells, CulturedCollagen Type ICollagen Type IIICollagen Type VFemaleFibroblastsGene DeletionHumansMaleMiceMice, Inbred C57BLMice, KnockoutMicroscopy, ElectronCollagen Type ICollagen Type IIICollagen Type VReceptor, Adenosine A2ARNA, Messenger

Identifiers

PMID20484596
PMCPMC2941168
OpenAlexW2148036948

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.