Evidence map›Paper›PMID 19304658›Full record

ArticleThe Journal of biological chemistry2009

Involvement of all-trans-retinal in acute light-induced retinopathy of mice.

Akiko Maeda, Tadao Maeda, Marcin Golczak, Steven Chou, Amar Desai, Charles L Hoppel, Shigemi Matsuyama, Krzysztof Palczewski

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 168 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
168citing papers in PubMed, 1 pooled it
7.0field-weighted citation impact, top 2% 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

168 citing papers in PubMed, 1 synthesis or guideline pooled it, 243 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Article
  5. Article
  6. Review
  7. Article
  8. Advances and therapeutic opportunities in visual cycle modulation.Progress in retinal and eye research · 2025
    Review
  9. Light as a Mediator of Acute and Chronic Retina Degeneration.Advances in experimental medicine and biology · 2025
    Review
  10. Review
  11. Review
  12. Novel Therapeutic Effects ofPharmaceuticals (Basel, Switzerland) · 2024
    Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. Article
  19. Article
  20. Article

108 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

8 authors at 1 institution in 1 country.

Akiko MaedaDepartment of Pharmacology, School of Medicine, Case Western Reserve University, Cleveland, OH 44106, USA.
Tadao Maeda
Marcin Golczak
Steven Chou
Amar Desai
Charles L Hoppel
Shigemi Matsuyama
Krzysztof Palczewski
Case Western Reserve University · US

Funding

TISSUE CULTURE AND HYBRIDOMA MODULEP30EY011373 · NEI · CASE WESTERN RESERVE UNIVERSITY · PI Irina A Pikuleva · 1997 to 2026
$17.7M
STRUCTURAL STUDIES OF ARRESTINSR01EY009339 · NEI · UNIVERSITY OF WASHINGTON · PI KISER, PHILIP DAVID, PALCZEWSKI, KRZYSZTOF · 1992 to 2025
$16.0M
RETINAL PHOTORECEPTOR CYCLIC GMP PHOSPHODIESTERASER01EY008123 · NEI · UNIVERSITY OF UTAH · PI BAEHR, WOLFGANG · 1990 to 2019
$7.8M
Retinal degeneration diseases and the visual retinoid cycleK08EY019031 · NEI · CASE WESTERN RESERVE UNIVERSITY · PI MAEDA, AKIKO · 2008 to 2012
$430k
NEI NIH HHS EY08123NEI NIH HHS EY093339NEI NIH HHS K08EY019031NEI NIH HHS P30 EY011373NEI NIH HHS P30 EY11373NEI NIH HHS R01 EY009339
6 · The paper itself

Abstract

Exposure to bright light can cause visual dysfunction and retinal photoreceptor damage in humans and experimental animals, but the mechanism(s) remain unclear. We investigated whether the retinoid cycle (i.e. the series of biochemical reactions required for vision through continuous generation of 11-cis-retinal and clearance of all-trans-retinal, respectively) might be involved. Previously, we reported that mice lacking two enzymes responsible for clearing all-trans-retinal, namely photoreceptor-specific ABCA4 (ATP-binding cassette transporter 4) and RDH8 (retinol dehydrogenase 8), manifested retinal abnormalities exacerbated by light and associated with accumulation of diretinoid-pyridinium-ethanolamine (A2E), a condensation product of all-trans-retinal and a surrogate marker for toxic retinoids. Now we show that these mice develop an acute, light-induced retinopathy. However, cross-breeding these animals with lecithin:retinol acyltransferase knock-out mice lacking retinoids within the eye produced progeny that did not exhibit such light-induced retinopathy until gavaged with the artificial chromophore, 9-cis-retinal. No significant ocular accumulation of A2E occurred under these conditions. These results indicate that this acute light-induced retinopathy requires the presence of free all-trans-retinal and not, as generally believed, A2E or other retinoid condensation products. Evidence is presented that the mechanism of toxicity may include plasma membrane permeability and mitochondrial poisoning that lead to caspase activation and mitochondria-associated cell death. These findings further understanding of the mechanisms involved in light-induced retinal degeneration.

Indexed as

LightAcute DiseaseAgingAlcohol OxidoreductasesAnimalsApoptosisATP-Binding Cassette Transportersbcl-2-Associated X ProteinCaspasesCell LineCell SurvivalChromatography, High Pressure LiquidChromatography, LiquidDiterpenesEthanolamineHumansAbca4 protein, mouseAlcohol OxidoreductasesATP-Binding Cassette Transportersbcl-2-Associated X ProteinCaspasesDiterpenesEthanolamineHSD17B6 protein, mouseisorhodopsinRetinaldehyderetinol acetateRetinyl EstersRhodopsinVitamin A

Identifiers

PMID19304658
PMCPMC2685698
OpenAlexW2099279540

What OpenQuestion holds

Textmetadata
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.