Evidence map›Paper›PMID 21738398›Full record

ArticleMolecular vision2011

Expression of cell proliferation and apoptosis biomarkers in pterygia and normal conjunctiva.

Kun Liang, Zhengxuan Jiang, Bi-qing Ding, Ping Cheng, Da-ke Huang, Li-ming Tao

Open access · greenAbstract read
In one paragraph

Article in Molecular vision, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 1 pooled it
3.7field-weighted citation impact, top 8% 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

24 citing papers in PubMed, 1 synthesis or guideline pooled it, 59 citations in OpenAlex.

  1. Pooled it
  2. K-ras oncogene mutation in pterygium.Eye (London, England) · 2017
    Trial
  3. Observational
  4. Review
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  13. How to minimize pterygium recurrence rates: clinical perspectives.Clinical ophthalmology (Auckland, N.Z.) · 2018
    Review
  14. Article
  15. Article
  16. Review
  17. Article
  18. Review
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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

6 authors at 1 institution in 1 country.

Kun LiangDepartment of Ophthalmology, the Second Hospital Affiliated to Anhui Medical University, Hefei, Anhui, PR China.
Zhengxuan Jiang
Bi-qing Ding
Ping Cheng
Da-ke Huang
Li-ming Tao
Anhui Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo analyze the expression of apoptosis and cell proliferation molecules in pterygium tissues of Chinese patients.

methodsThirty-three pterygia were surgically removed using the bare sclera procedure, and 23 normal bulbar conjunctivas were also obtained. Formalin-fixed, paraffin-wax-embedded tissues were analyzed by immunohistochemistry with anti- proliferating cell nuclear antigen (PCNA), K(i)-67 (a proliferating cell marker), mutant p53 (mP53), Bcl-2 associated X-protein (BAX), B-cell lymphoma gene 2 (Bcl-2), and caspase-3 antibodies. Terminal deoxynucleotidyl transferase-mediated dUTP-biotin nick end labeling assay (TUNEL) analysis was used to analyze the apoptotic cells.

resultsOur study revealed that the positive rate of PCNA and K(i)-67 significantly increased in the pterygium samples compared to the normal conjunctiva samples. In the molecules involved in apoptosis, the results showed that the positive rate of Bcl-2 and mP53 significantly increased in the pterygium samples. However, no difference was found between the pterygium and normal conjunctiva samples in the expression of Bax and caspase-3. Through TUNEL analysis, apoptotic cells were seen in the entire width of the epithelial layer in normal conjunctivas but were found mainly confined to the outer layer of the epithelial cells in pterygia.

conclusionsThe finding of high levels of cellular proliferation and low levels of cellular apoptosis in pterygia confirmed that both cell apoptosis and proliferation are known to play an important role in human pterygium pathogenesis.

Indexed as

AdultAgedApoptosisBiomarkersCase-Control StudiesCell ProliferationConjunctivaEpithelial CellsFemaleGene ExpressionHumansImmunohistochemistryIn Situ Nick-End LabelingKi-67 AntigenMaleMiddle AgedBiomarkersKi-67 AntigenProliferating Cell Nuclear AntigenProto-Oncogene Proteins c-bcl-2Tumor Suppressor Protein p53

Identifiers

PMID21738398
PMCPMC3130721
OpenAlexW80263773

What OpenQuestion holds

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LicenceCC BY
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.