Evidence map›Paper›PMID 28304244›Full record

ArticleVisual neuroscience2017

Intravitreally-administered dopamine D2-like (and D4), but not D1-like, receptor agonists reduce form-deprivation myopia in tree shrews.

Alexander H Ward, John T Siegwart, Michael R Frost, Thomas T Norton

Open access · bronzeAbstract read
In one paragraph

Article in Visual neuroscience, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
3.7field-weighted citation impact, top 7% 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

23 citing papers in PubMed, 39 citations in OpenAlex.

  1. Review
  2. Review
  3. Review
  4. Article
  5. Article
  6. Article
  7. Review
  8. Article
  9. Retardation of myopia by atropine regimes.International journal of ophthalmology · 2024
    Review
  10. Mice LackingInternational journal of molecular sciences · 2022
    Article
  11. Review
  12. Review
  13. Article
  14. Ocular Penetrance and Safety of the Dopaminergic Prodrug Etilevodopa.Translational vision science & technology · 2021
    Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. IMI - Report on Experimental Models of Emmetropization and Myopia.Investigative ophthalmology & visual science · 2019
    Review
  20. 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

4 authors at 1 institution in 1 country.

Alexander H WardGenetics, Genomics and Bioinformatics Theme,University of Alabama at Birmingham,Birmingham,AL 35294.
John T SiegwartDepartment of Optometry and Vision Science,University of Alabama at Birmingham,Birmingham,AL 35294.
Michael R FrostDepartment of Optometry and Vision Science,University of Alabama at Birmingham,Birmingham,AL 35294.
Thomas T NortonDepartment of Optometry and Vision Science,University of Alabama at Birmingham,Birmingham,AL 35294.
University of Alabama at Birmingham · US

Funding

Visual Phenotyping CoreP30EY003039 · NEI · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI Paul Douglas Gamlin · 1985 to 2026
$16.9M
MECHANISMS OF OCULAR DEVELOPMENTR01EY005922 · NEI · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI NORTON, THOMAS T · 1986 to 2012
$4.5M
NEI NIH HHS P30 EY003039NEI NIH HHS R01 EY005922
6 · The paper itself

Abstract

We examined the effect of intravitreal injections of D1-like and D2-like dopamine receptor agonists and antagonists and D4 receptor drugs on form-deprivation myopia (FDM) in tree shrews, mammals closely related to primates. In eleven groups (n = 7 per group), we measured the amount of FDM produced by monocular form deprivation (FD) over an 11-day treatment period. The untreated fellow eye served as a control. Animals also received daily 5 µL intravitreal injections in the FD eye. The reference group received 0.85% NaCl vehicle. Four groups received a higher, or lower, dose of a D1-like receptor agonist (SKF38393) or antagonist (SCH23390). Four groups received a higher, or lower, dose of a D2-like receptor agonist (quinpirole) or antagonist (spiperone). Two groups received the D4 receptor agonist (PD168077) or antagonist (PD168568). Refractions were measured daily; axial component dimensions were measured on day 1 (before treatment) and day 12. We found that in groups receiving the D1-like receptor agonist or antagonist, the development of FDM and altered ocular component dimensions did not differ from the NaCl group. Groups receiving the D2-like receptor agonist or antagonist at the higher dose developed significantly less FDM and had shorter vitreous chambers than the NaCl group. The D4 receptor agonist, but not the antagonist, was nearly as effective as the D2-like agonist in reducing FDM. Thus, using intravitreally-administered agents, we did not find evidence supporting a role for the D1-like receptor pathway in reducing FDM in tree shrews. The reduction of FDM by the dopamine D2-like agonist supported a role for the D2-like receptor pathway in the control of FDM. The reduction of FDM by the D4 receptor agonist, but not the D4 antagonist, suggests an important role for activation of the dopamine D4 receptor in the control of axial elongation and refractive development.

Indexed as

Sensory DeprivationAnimalsAxial Length, EyeDisease Models, AnimalDopamine AgonistsDopamine AntagonistsIntravitreal InjectionsMaleMass SpectrometryMyopiaReceptors, Dopamine D1Receptors, Dopamine D2Receptors, Dopamine D4Refraction, OcularTupaiidaeDopamine AgonistsDopamine AntagonistsReceptors, Dopamine D1Receptors, Dopamine D2Receptors, Dopamine D4DopamineEmmetropizationForm-deprivation myopiaIntravitreal injectionRefractive development

Identifiers

PMID28304244
PMCPMC5567805
OpenAlexW2580902549

What OpenQuestion holds

Textmetadata
LicenceTDM
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.