Evidence map›Paper›PMID 32178637›Full record

ArticleBMC ophthalmology2020

Morphologic and biochemical changes in the retina and sclera induced by form deprivation high myopia in guinea pigs.

Yingxin Zi, Yu Deng, Jingru Zhao, Meiqi Ji, Yali Qin, Tingting Deng, Ming Jin

Open access · goldAbstract readComparative Study
In one paragraph

Article in BMC ophthalmology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
2.0field-weighted citation impact, top 13% 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

22 citing papers in PubMed, 33 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
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  6. Article
  7. The potential role of amino acids in myopia: inspiration from metabolomics.Metabolomics : Official journal of the Metabolomic Society · 2024
    Review
  8. Article
  9. Retinoscopes: Past and present.World journal of methodology · 2024
    Article
  10. Article
  11. Review
  12. Article
  13. Article
  14. Spontaneously Myopic Guinea Pig: Model of Early Pathologic Myopia.Investigative ophthalmology & visual science · 2023
    Article
  15. IMI-Nonpathological Human Ocular Tissue Changes With Axial Myopia.Investigative ophthalmology & visual science · 2023
    Article
  16. Article
  17. Article
  18. Article
  19. 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

7 authors at 2 institutions in 1 country.

Yingxin ZiDepartment of Graduate School, Beijing University of Chinese Medicine, No.11, North 3rd Ring East Road, Chaoyang District, Beijing, 100029, China.
Yu DengDepartment of Graduate School, Beijing University of Chinese Medicine, No.11, North 3rd Ring East Road, Chaoyang District, Beijing, 100029, China.
Jingru ZhaoDepartment of Graduate School, Beijing University of Chinese Medicine, No.11, North 3rd Ring East Road, Chaoyang District, Beijing, 100029, China.
Meiqi JiDepartment of Graduate School, Beijing University of Chinese Medicine, No.11, North 3rd Ring East Road, Chaoyang District, Beijing, 100029, China.
Yali QinDepartment of Graduate School, Beijing University of Chinese Medicine, No.11, North 3rd Ring East Road, Chaoyang District, Beijing, 100029, China.
Tingting DengInstitute of Clinical Medical Sciences, China-Japan Friendship Hospital, Yinghua Donglu, Chaoyang District, Beijing, 100029, China.
Ming JinDepartment of Ophthalmology, China-Japan Friendship Hospital, Yinghua Donglu, Chaoyang District, Beijing, 100029, China. jinmingyk@163.com.
China-Japan Friendship Hospital · CNBeijing University of Chinese Medicine · CN

Funding

National Natural Science Foundation of China 81574029
6 · The paper itself

Abstract

backgroundTo study the morphologic and biochemical changes in the retina and sclera induced by form deprivation high myopia (FDHM) in guinea pigs and explore the possible mechanisms of FDHM formation.

methodsForty 3-week-old guinea pigs were randomized into the blank control (Group I, 20 cases) and model groups (20 cases). In the model group, the right eyes of the guinea pigs were sutured for 8 weeks to induce FDHM (Group II) and the left eyes were considered a self-control group (Group III). The refractive errors were measured with retinoscopy. The anterior chamber depth (AC), lens thickness (L), vitreous chamber depth (V) and axial length (AL) were measured using ultrasonometry A. Retinal and scleral morphology and ultrastructural features were observed with light and electron microscopy. The malondialdehyde (MDA) content and superoxide dismutase (SOD) activity in the retina and sclera were detected with a chemical colorimetric assay.

resultsAfter 8 weeks of stitching, the refractive errors of Group II changed from (+ 3.59 ± 0.33) D to (- 7.96 ± 0.55) D, and these values were significantly higher than those of Group I (+ 0.89 ± 0.32) D and Group III (- 0.55 ± 0.49) D (P < 0.05). The vitreous chamber depth (4.12 ± 0.13) mm and axial length (8.93 ± 0.22) mm of Group II were significantly longer than those of Group I [(3.71 ± 0.23) mm and (7.95 ± 0.37) mm, respectively] and Group III [(3.93 ± 0.04) mm and (8.01 ± 0.15) mm, respectively] (P < 0.05). With the prolongation of form deprivation (FD), the retina and scleral tissues showed thinning, the ganglion cell and inner and outer nuclear layers of the retina became decreased, and the arrangement was disordered. In Group II, the SOD activity was significantly lower than that in Group I and Group III; the MDA content was significantly higher than that in Group I and Group III. The differences were statistically significant (P < 0.05).

conclusionsThese findings suggested that in the FDHM guinea pigs model, the refractive errors, the vitreous chamber depth, and axial length increased significantly with prolongation of monocular FD time, and morphological structural changes in the retina and sclera were observed. Oxygen free radicals might participate in the formation of FDHM.

Indexed as

AnimalsDisease Models, AnimalEye ProteinsGuinea PigsMyopia, DegenerativeRetinaRetinoscopyScleraEye ProteinsForm deprivationGuinea pigHigh myopiaLocal retinal regulationOxygen free radical

Identifiers

PMID32178637
PMCPMC7077153
OpenAlexW3010790389

What OpenQuestion holds

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LicenceCC BY
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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.