Evidence map›Paper›PMID 22209824›Full record

ReviewProgress in retinal and eye research2012

The bisretinoids of retinal pigment epithelium.

Janet R Sparrow, Emily Gregory-Roberts, Kazunori Yamamoto, Anna Blonska, Shanti Kaligotla Ghosh, Keiko Ueda, Jilin Zhou

Abstract readReview
In one paragraph

Review in Progress in retinal and eye research, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 248 papers.

0numbers the graph read from it
0cells of the map it votes in
248citing papers in PubMed
16.2field-weighted citation impact, top 1% 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

248 citing papers in PubMed, 384 citations in OpenAlex.

  1. Trial
  2. Review
  3. Article
  4. Article
  5. Article
  6. Article
  7. iScience · 2026
    Article
  8. Article
  9. More insights from Abca4The Journal of biological chemistry · 2026
    Article
  10. Case series: The value of fundus autofluorescence in inherited macular disease.Optometry and vision science : official publication of the American Academy of Optometry · 2026
    Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. Article
  16. Article
  17. Review
  18. An open-source photobleacher for fluorescence imaging of large pigment-rich tissues.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  19. Review
  20. Review

188 more citing papers are in PubMed but not listed here.

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

7 authors at 1 institution in 1 country.

Janet R SparrowDepartment of Ophthalmology, Columbia University, 630 W. 168th Street, New York, NY 10032, USA. jrs88@columbia.edu
Emily Gregory-Roberts
Kazunori Yamamoto
Anna Blonska
Shanti Kaligotla Ghosh
Keiko Ueda
Jilin Zhou
Columbia University · US

Funding

Instrumentation, Fabrication, and Design CoreP30EY019007 · NEI · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI Xin Zhang · 2010 to 2026
$12.9M
IMPACT OF LIPOFUSCIN IN RETINAL PIGMENT EPITHELIAL CELLSR01EY012951 · NEI · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI SPARROW, JANET RUTHE · 2000 to 2024
$8.9M
NEI NIH HHS EY12951NEI NIH HHS P30 EY019007NEI NIH HHS P30EY019007NEI NIH HHS R01 EY012951
6 · The paper itself

Abstract

The retina exhibits an inherent autofluorescence that is imaged ophthalmoscopically as fundus autofluorescence. In clinical settings, fundus autofluorescence examination aids in the diagnosis and follow-up of many retinal disorders. Fundus autofluorescence originates from the complex mixture of bisretinoid fluorophores that are amassed by retinal pigment epithelial (RPE) cells as lipofuscin. Unlike the lipofuscin found in other cell-types, this material does not form as a result of oxidative stress. Rather, the formation is attributable to non-enzymatic reactions of vitamin A aldehyde in photoreceptor cells; transfer to RPE occurs upon phagocytosis of photoreceptor outer segments. These fluorescent pigments accumulate even in healthy photoreceptor cells and are generated as a consequence of the light capturing function of the cells. Nevertheless, the formation of this material is accelerated in some retinal disorders including recessive Stargardt disease and ELOVL4-related retinal degeneration. As such, these bisretinoid side-products are implicated in the disease processes that threaten vision. In this article, we review our current understanding of the composition of RPE lipofuscin, the structural characteristics of the various bisretinoids, their related spectroscopic features and the biosynthetic pathways by which they form. We will revisit factors known to influence the extent of the accumulation and therapeutic strategies being used to limit bisretinoid formation. Given their origin from vitamin A aldehyde, an isomer of the visual pigment chromophore, it is not surprising that the bisretinoids of retina are light sensitive molecules. Accordingly, we will discuss recent findings that implicate the photodegradation of bisretinoid in the etiology of age-related macular degeneration.

Indexed as

AnimalsCattleFluorescenceHumansLipofuscinMacular DegenerationMiceMolecular StructureRatsRetinaldehydeRetinal Pigment EpitheliumRetinoidsSpectrometry, FluorescenceLipofuscinRetinaldehydeRetinoids

Identifiers

PMID22209824
PMCPMC3288746
OpenAlexW2019731198

What OpenQuestion holds

Textmetadata
LicenceTDM
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.