Evidence map›Paper›PMID 33646290›Full record

ArticleInvestigative ophthalmology & visual science2021

Tear Fluid Angiogenic Factors: Potential Noninvasive Biomarkers for Retinopathy of Prematurity Screening in Preterm Infants.

Anand Vinekar, Archana Padmanabhan Nair, Shivani Sinha, Tanuja Vaidya, Koushik Chakrabarty, Rohit Shetty, Arkasubhra Ghosh, Swaminathan Sethu

Open access · goldAbstract read
In one paragraph

Article in Investigative ophthalmology & visual science, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
3.1field-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

20 citing papers in PubMed, 29 citations in OpenAlex.

  1. Review
  2. Article
  3. Identifying potential tear biomarkers in premature infants with retinopathy of prematurity based on proteome and transcriptome analysis.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2025
    Article
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  5. Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Observational
  15. Article
  16. Systemic Cytokines in Retinopathy of Prematurity.Journal of personalized medicine · 2023
    Review
  17. Review
  18. Observational
  19. Angiogenin and Copper Crossing in Wound Healing.International journal of molecular sciences · 2021
    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

8 authors at 2 institutions in 2 countries.

Anand VinekarDepartment of Pediatric Retina, Narayana Nethralaya, Bangalore, India.
Archana Padmanabhan NairGROW Research Lab, Narayana Nethralaya Foundation, Bangalore, India.
Shivani SinhaDepartment of Pediatric Retina, Narayana Nethralaya, Bangalore, India.
Tanuja VaidyaGROW Research Lab, Narayana Nethralaya Foundation, Bangalore, India.
Koushik ChakrabartyGROW Research Lab, Narayana Nethralaya Foundation, Bangalore, India.
Rohit ShettyDepartment of Cornea and Refractive Surgery, Narayana Nethralaya, Bangalore, India.
Arkasubhra GhoshGROW Research Lab, Narayana Nethralaya Foundation, Bangalore, India.
Swaminathan SethuGROW Research Lab, Narayana Nethralaya Foundation, Bangalore, India.
Narayana Nethralaya · INManipal Academy of Higher Education · IN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Purpose: To determine the status of proangiogenic factors in the tear fluid of preterm infants with and without retinopathy of prematurity (ROP). Methods: Preterm infants (n = 36) undergoing routine ROP screening included in the prospective study were categorized as No-ROP (n = 13, no ROP at any visits), ROP (if ROP was present at first visit; n = 18), or No-ROP to ROP (no disease at first visit, but developed ROP subsequently; n = 5). Infants with ROP were also grouped as progressing (n = 7) and regressing (n = 16) based on ROP evolution between the first and subsequent visits. Schirmer's strips were used to collect tear fluid and proangiogenic factors (VEGF, angiogenin, soluble vascular cell adhesion molecule, and fractalkine) levels (in picograms per milliliter) in tear fluid were measured by multiplex ELISA. Results: Lower levels of VEGF (135 ± 69; mean ± standard deviation) and higher levels of angiogenin (6568 ± 4975) were observed in infants with ROP compared with infants without ROP (172.5 ± 54.0; 4139 ± 3909) at the first visit. Significantly lower levels of VEGF were observed in the No-ROP to ROP group compared with the No-ROP and ROP groups. The VEGF and angiogenin levels at the first visit were significantly lower in infants with ROP with progressing disease. Angiogenin levels negatively correlated with birth weight and gestational age in ROP. The area under the curve (AUC) and odds ratio (OR) analysis demonstrated that angiogenin/birth weight (AUC = 0.776; OR, 8.6); angiogenin/gestational age (AUC = 0.706; OR, 7.3) and Angiogenin/VEGF (AUC = 0.806; OR, 14.3) ratios were able to differentiated preterm infants with and without ROP. Conclusions: The association between angiogenin and ROP suggests its possible role in ROP. The ratio of angiogenin level with birth weight, gestational age, and/or VEGF could serve as a potential noninvasive screening biomarker for ROP.

Indexed as

Angiogenesis Inducing AgentsArea Under CurveBiomarkersBirth WeightChemokine CX3CL1Enzyme-Linked Immunosorbent AssayEye ProteinsFemaleFollow-Up StudiesGestational AgeHumansInfant, NewbornInfant, PrematureMaleOdds RatioPilot ProjectsAngiogenesis Inducing AgentsangiogeninBiomarkersChemokine CX3CL1CX3CL1 protein, humanEye ProteinsRibonuclease, Pancreatictear proteinsVascular Cell Adhesion Molecule-1Vascular Endothelial Growth Factor AVEGFA protein, human

Identifiers

PMID33646290
PMCPMC7938022
OpenAlexW3135170705

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.