Evidence map›Paper›PMID 23701820›Full record

Trial reportMechanisms of ageing and development

Assessment of candidate ocular biomarkers of ageing in a South African adult population: relationship with chronological age and systemic biomarkers.

Sophia Pathai, Clare E Gilbert, Stephen D Lawn, Helen A Weiss, Tunde Peto, Colin Cook, Tien Y Wong, Paul G Shiels

Abstract readClinical TrialMulticenter Study
In one paragraph

Trial report in Mechanisms of ageing and development. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
–field-weighted citation impact
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

9 citing papers in PubMed.

  1. Review
  2. Review
  3. Article
  4. Article
  5. Article
  6. Article
  7. Observational
  8. Article
  9. Article
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.

Sophia PathaiInternational Centre for Eye Health, Department of Clinical Research, Faculty of Infectious and Tropical Diseases, London School of Hygiene & Tropical Medicine (LSHTM), Keppel Street, London WC1E 7HT, UK. Sophia.pathai@lshtm.ac.uk
Clare E Gilbert
Stephen D Lawn
Helen A Weiss
Tunde Peto
Colin Cook
Tien Y Wong
Paul G Shiels

Funding

Medical Research Council MR/K012126/1Wellcome Trust 088590Wellcome Trust 090354/Z/09/Z
6 · The paper itself

Abstract

Certain anatomic and functional parameters of the eye change with increasing chronological age. They may, therefore, serve as potential biomarkers of ageing. We investigated associations between four such ocular parameters (lens density, retinal vessel calibre, corneal endothelial cells and retinal nerve fibre layer thickness) and two 'cellular' biomarkers of ageing (leukocyte telomere length and CDKN2A expression), with frailty (a clinical correlate of biological ageing) in a population of South African adults. All ocular parameters revealed an association with either telomere length or CDKN2A expression. However, lens density was most strongly correlated with age, increased CDKN2A expression, and with frailty (p=0.05 and 0.03, respectively). Narrow retinal arteriolar diameter, associated with increased chronological age, was also associated with increased CDK2NA expression (0.42 vs. 0.31, p=0.02) but not with frailty. Ocular parameters may aid in determining biological age, warranting investigation in longitudinal studies.

Indexed as

Gene Expression RegulationAdultAgingBiomarkersCyclin-Dependent Kinase Inhibitor p16FemaleHumansLeukocytesMaleMiddle AgedRetinaRetinal VesselsSouth AfricaTelomereBiomarkersCyclin-Dependent Kinase Inhibitor p16

Identifiers

PMID23701820
PMCPMC3710972

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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.