Evidence map›Paper›PMID 27226929›Full record

ArticleTranslational vision science & technology2016

Spatial and Spectral Characterization of Human Retinal Pigment Epithelium Fluorophore Families by Ex Vivo Hyperspectral Autofluorescence Imaging.

Tal Ben Ami, Yuehong Tong, Alauddin Bhuiyan, Carrie Huisingh, Zsolt Ablonczy, Thomas Ach, Christine A Curcio, R Theodore Smith

Open access · goldAbstract read
In one paragraph

Article in Translational vision science & technology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 2 pooled it
2.7field-weighted citation impact, top 11% 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, 2 syntheses or guidelines pooled it, 34 citations in OpenAlex.

  1. Pooled it
  2. Hyperspectral Imaging and the Retina: Worth the Wave?Translational vision science & technology · 2020
    Pooled it
  3. iScience · 2026
    Article
  4. Review
  5. Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. 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 at 4 institutions in 2 countries.

Tal Ben AmiDepartment of Ophthalmology, New York University School of Medicine, New York, New York, USA.
Yuehong TongDepartment of Ophthalmology, New York University School of Medicine, New York, New York, USA.
Alauddin BhuiyanDepartment of Ophthalmology, New York University School of Medicine, New York, New York, USA.
Carrie HuisinghDepartment of Ophthalmology, University of Alabama at Birmingham, Birmingham, Alabama, USA.
Zsolt AblonczyDepartment of Ophthalmology, Medical University of South Carolina, Charleston, South Carolina, USA.
Thomas AchDepartment of Ophthalmology, University Hospital of Würzburg, Würzburg, Germany.
Christine A CurcioDepartment of Ophthalmology, University of Alabama at Birmingham, Birmingham, Alabama, USA.
R Theodore SmithDepartment of Ophthalmology, New York University School of Medicine, New York, New York, USA.
New York University · USUniversity of Alabama at Birmingham · USMedical University of South Carolina · USUniversitätsklinikum Würzburg · DE

Funding

QUANTITATIVE ANAYLSIS OF AGING RETINAR01EY006109 · NEI · UNIVERSITY OF WASHINGTON · PI CURCIO, CHRISTINE A · 1986 to 2012
$3.5M
Hyperspectral Imaging of the Normal and Age-related Macular Degeneration FundusR01EY021470 · NEI · NEW YORK UNIVERSITY SCHOOL OF MEDICINE · PI FAWZI, AMANI A, SMITH, ROLAND THEODORE · 2011 to 2014
$3.4M
The Mechanism of the Outer Blood-Retina Barrier BreakdownR01EY019065 · NEI · MEDICAL UNIVERSITY OF SOUTH CAROLINA · PI ABLONCZY, ZSOLT · 2010 to 2014
$1.7M
NEI NIH HHS R01 EY006109NEI NIH HHS R01 EY019065NEI NIH HHS R01 EY021470
6 · The paper itself

Abstract

purposeDiscovery of candidate spectra for abundant fluorophore families in human retinal pigment epithelium (RPE) by ex vivo hyperspectral imaging.

methodsHyperspectral autofluorescence emission images were captured between 420 and 720 nm (10-nm intervals), at two excitation bands (436-460, 480-510 nm), from three locations (fovea, perifovea, near-periphery) in 20 normal RPE/Bruch's membrane (BrM) flatmounts. Mathematical factorization extracted a BrM spectrum (S0) and abundant lipofuscin/melanolipofuscin (LF/ML) spectra of RPE origin (S1, S2, S3) from each tissue.

resultsSmooth spectra S1 to S3, with perinuclear localization consistent with LF/ML at all three retinal locations and both excitations in 14 eyes (84 datasets), were included in the analysis. The mean peak emissions of S0, S1, and S2 at

conclusionsThere appear to be at least three families of abundant RPE fluorophores that are ubiquitous across age, retinal location, and sex in this sample of healthy eyes. Further molecular characterization by imaging mass spectrometry and localization via super-resolution microscopy should elucidate normal and abnormal RPE physiology involving fluorophores. TRANSLATIONAL RELEVANCE: Our results help establish hyperspectral autofluorescence imaging of the human retinal pigment epithelium as a useful tool for investigating retinal health and disease.

Indexed as

autofluorescence imagingbisretinoidshyperspectral imaginglipofuscinretinal pigment epithelium

Identifiers

PMID27226929
PMCPMC4874453
OpenAlexW2401647389

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.