Evidence map›Paper›PMID 29653563›Full record

ArticleBMC ophthalmology2018

A rabbit model of corneal Ectasia generated by treatment with collagenase type II.

Jing Qiao, Haili Li, Yun Tang, Wenjing Song, Bei Rong, Songlin Yang, Yuan Wu, Xiaoming Yan

Open access · goldAbstract read
In one paragraph

Article in BMC ophthalmology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
1.8field-weighted citation impact, top 15% 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

15 citing papers in PubMed, 35 citations in OpenAlex.

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  6. [Anisotropy and viscoelasticity of different corneal regions in rabbit corneal ectasia model].Sheng wu yi xue gong cheng xue za zhi = Journal of biomedical engineering = Shengwu yixue gongchengxue zazhi · 2024
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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

8 authors at 2 institutions in 1 country.

Jing QiaoDepartment of Ophthalmology, Peking University First Hospital, Beijing, 100034, China.
Haili LiDepartment of Ophthalmology, Peking University First Hospital, Beijing, 100034, China.
Yun TangDepartment of Ophthalmology, Peking University First Hospital, Beijing, 100034, China.
Wenjing SongDepartment of Ophthalmology, Peking University First Hospital, Beijing, 100034, China.
Bei RongDepartment of Ophthalmology, Peking University First Hospital, Beijing, 100034, China.
Songlin YangDepartment of Ophthalmology, Peking University First Hospital, Beijing, 100034, China.
Yuan WuDepartment of Ophthalmology, Peking University First Hospital, Beijing, 100034, China.
Xiaoming YanDepartment of Ophthalmology, Peking University First Hospital, Beijing, 100034, China. yanxiaoming7908@163.com.
Peking University First Hospital · CNPeking University · CN

Funding

Beijing Municipal Natural Science Foundation 7142159National Natural Science Foundation of China 11372011
6 · The paper itself

Abstract

backgroundTo investigate use of collagenase type II for generating a rabbit model of corneal ectasia.

methodsTen New Zealand white rabbits were used with right eyes treated as the experimental group and left eyes treated as the control group. After epithelial debridement, a collagenase type II solution (200 μL of 5 mg/mL) was applied in the experimental group at room temperature (24 °C) for 30 min, and a 200 μL solution without collagenase was applied in the control group. Slit-lamp microscopy, the mean keratometry (Km), and central cornea thickness (CCT) were examined before and after the procedure. Corneas were obtained on day 14 for biomechanical evaluation.

resultsNo obvious inflammatory reaction was observed in all eyes after the procedure. A statistically significant increase in Km (1.54 ± 1.29D vs - 0.82 ± 0.44D at day7 and 0.89 ± 0.89D vs - 2.11 ± 1.02D at day14) and a statistically significant decrease in CCT (- 23.10 ± 12.17 μm vs 6.20 ± 16.51 μm at day7 and - 16.10 ± 10.46 μm vs 11.60 ± 0.88 μm at day14) were observed in the experimental group compared with the control group. The mean stresses and elastic modulus at 5%, 10%, 15%, and 20% deformities in the experimental group decreased and the differences in elastic modulus between the two groups were statistically significant at 10% and 15% deformities.

conclusionsCollagenase type II treatment results in mimic KC with increased corneal keratometry and corneal thinning and a lower elastic modulus. An animal model for corneal ectasia can be generated by treatment with collagenase type II.

Indexed as

Analysis of VarianceAnimalsCollagenasesCorneaCorneal TopographyDilatation, PathologicDisease Models, AnimalElastic ModulusFemaleKeratoconusRabbitsCollagenasesAnimal modelCollagenase type IICorneal ectasiaKeratoconus

Identifiers

PMID29653563
PMCPMC5899372
OpenAlexW2804956921

What OpenQuestion holds

Textmetadata
LicenceCC BY
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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.