Evidence map›Paper›PMID 23428741›Full record

ArticleExperimental eye research2013

Effects of imposed defocus of opposite sign on temporal gene expression patterns of BMP4 and BMP7 in chick RPE.

Yan Zhang, Yue Liu, Carol Ho, Christine F Wildsoet

Open access · greenAbstract read
In one paragraph

Article in Experimental eye research, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
1.3field-weighted citation impact, top 20% 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

19 citing papers in PubMed, 24 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Functional Differentiation of BMP7 Genes in Zebrafish:Frontiers in cell and developmental biology · 2022
    Article
  7. Review
  8. Article
  9. Review
  10. Article
  11. IMI - Report on Experimental Models of Emmetropization and Myopia.Investigative ophthalmology & visual science · 2019
    Review
  12. Article
  13. Article
  14. Article
  15. Review
  16. Article
  17. Article
  18. RPE and Choroid Mechanisms Underlying Ocular Growth and Myopia.Progress in molecular biology and translational science · 2015
    Review
  19. 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 2 institutions in 1 country.

Yan ZhangCenter for Eye Disease & Development, School of Optometry, University of California, Berkeley, CA, USA. yanzhang@berkeley.edu
Yue Liu
Carol Ho
Christine F Wildsoet
University of California, Berkeley · USBerkeley Eye Center · US

Funding

TRAINING PROGRAM IN VISION SCIENCET32EY007043 · NEI · UNIVERSITY OF CALIFORNIA BERKELEY · PI Suzanne MJ FLEISZIG · 1985 to 2026
$12.9M
Berkeley Clinical Scientist Development ProgramK12EY017269 · NEI · UNIVERSITY OF CALIFORNIA BERKELEY · PI POLSE, KENNETH A · 2005 to 2014
$8.6M
Mechanisms underlying emmetropization and local eye growth regulationR01EY012392 · NEI · UNIVERSITY OF CALIFORNIA BERKELEY · PI WILDSOET, CHRISTINE FRANCES · 1999 to 2018
$4.6M
NEI NIH HHS K12 EY017269NEI NIH HHS K12 EY17269NEI NIH HHS R01 EY012392NEI NIH HHS T32 EY007043
6 · The paper itself

Abstract

This study investigated the effects of imposed optical defocus on the expression patterns of bone morphogenetic protein 4 and 7 (BMP4, BMP7) in chick retinal pigment epithelium (RPE), as indicators of roles in postnatal eye growth regulation. BMP4 and BMP7 gene and protein expression patterns were characterized for retina, RPE and choroid tissues of young normal White-Leghorn chickens. The effects of short-term (2 and 48 h) exposure to monocular +10 and -10 diopter (D) lenses on RPE gene expression of BMP4 and BMP7 were also examined. Tissues from both treated and fellow eyes as well as from eyes of age-matched untreated birds were included in the latter experiment. Of ocular tissues comprising the posterior wall of the chick eye, RPE showed the highest expression of BMP4 and BMP7 mRNA, compared to retina and choroid. Western blots and immunohistochemistry confirmed the expression of BMP4 and BMP7 protein in all layers - retina, RPE, choroid and sclera. With imposed defocus, both BMP4 and BMP7 showed bidirectional changes in expression in RPE, however, with different temporal patterns. With +10 D lenses, BMP4 gene expression was up-regulated after both 2 and 48 h of treatment, while BMP7 expression was up-regulated only after 48 h of lens wear. With -10 D lenses, both BMP4 and BMP7 showed down-regulation of gene expression for both 2 and 48 h treatment durations. With the -10 D lens treatment applied for 48 h, gene expression for both BMP4 and BMP7 was also down-regulated in contralateral fellows of treated eyes compared to eyes of untreated chicks. The rapid changes in gene expression in chick RPE observed for both BMP4 and BMP7, up or down according to the sign of imposed optical defocus, resemble similar trends reported for BMP2. Further studies are needed to confirm the roles of BMPs as ocular growth modulators, as suggested by these data. The data also suggest a role for the RPE as a conduit for relaying growth modulatory retinal signals.

Indexed as

AnimalsBlotting, WesternBone Morphogenetic Protein 4Bone Morphogenetic Protein 7ChickensFixation, OcularGene Expression Regulation, DevelopmentalImmunohistochemistryLensesModels, GeneticPerceptual DistortionRetinaRetinal Pigment EpitheliumRNA, MessengerSignal TransductionBone Morphogenetic Protein 4Bone Morphogenetic Protein 7RNA, Messenger

Identifiers

PMID23428741
PMCPMC3615070
OpenAlexW2038337723

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.