Evidence map›Paper›PMID 28662237›Full record

ArticleInvestigative ophthalmology & visual science2017

Oxidative Stress Measures of Lipid and DNA Damage in Human Tears.

Kristina M Haworth, Heather L Chandler

Open access · goldAbstract read
In one paragraph

Article in Investigative ophthalmology & visual science, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed, 1 pooled it
1.2field-weighted citation impact, top 18% 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

6 citing papers in PubMed, 1 synthesis or guideline pooled it, 9 citations in OpenAlex.

  1. Conjunctival Ultraviolet Autofluorescence: A Systematic Review of Factors Affecting Observed Ocular Damage.Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists) · 2026
    Pooled it
  2. Article
  3. Anti-Oxidative and Anti-Inflammatory Micelles: Break the Dry Eye Vicious Cycle.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2022
    Article
  4. Article
  5. Review
  6. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

2 authors at 2 institutions in 1 country.

Kristina M HaworthSouthern College of Optometry, Memphis, Tennessee, United States.
Heather L ChandlerThe Ohio State University College of Optometry, Columbus, Ohio, United States.
Southern College of Optometry · USThe Ohio State University · US

Funding

MYOPIA DEVELOPMENT IN CHILDRENU10EY008893 · NEI · OHIO STATE UNIVERSITY · PI ZADNIK, KARLA · 1996 to 2010
$19.6M
NEI NIH HHS U10 EY008893
6 · The paper itself

Abstract

Purpose: We evaluate feasibility and repeatability of measures for lipid peroxidation and DNA oxidation in human tears, as well as relationships between outcome variables, and compared our findings to previously reported methods of evaluation for ocular sun exposure. Methods: A total of 50 volunteers were seen for 2 visits 14 ± 2 days apart. Tear samples were collected from the inferior tear meniscus using a glass microcapillary tube. Oxidative stress biomarkers were quantified using enzyme-linked immunosorbent assay (ELISA): lipid peroxidation by measurement of hexanoyl-lysine (HEL) expression; DNA oxidation by measurement of 8-oxo-2'-deoxyguinosone (8OHdG) expression. Descriptive statistics were generated. Repeatability estimates were made using Bland-Altman plots with mean differences and 95% limits of agreement were calculated. Linear regression was conducted to evaluate relationships between measures. Results: Mean (±SD) values for tear HEL and 8OHdG expression were 17368.02 (±9878.42) nmol/L and 66.13 (±19.99) ng/mL, respectively. Repeatability was found to be acceptable for both HEL and 8OHdG expression. Univariate linear regression supported tear 8OHdG expression and spring season of collection to be predictors of higher tear HEL expression; tear HEL expression was confirmed as a predictor of higher tear 8OHdG expression. Conclusions: We demonstrate feasibility and repeatability of estimating previously unreported tear 8OHdG expression. Seasonal temperature variation and other factors may influence tear lipid peroxidation. Support is demonstrated to suggest lipid damage and DNA damage occur concurrently on the human ocular surface.

Indexed as

8-Hydroxy-2'-DeoxyguanosineAdultBiomarkersDeoxyguanosineDNA DamageEnzyme-Linked Immunosorbent AssayFeasibility StudiesFemaleHumansLipid PeroxidationMaleMiddle AgedOxidative StressRegression AnalysisReproducibility of ResultsSeasons8-Hydroxy-2'-DeoxyguanosineBiomarkersDeoxyguanosine

Identifiers

PMID28662237
PMCPMC5491242
OpenAlexW2729210075

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.