Evidence map›Paper›PMID 29276475›Full record

ReviewFrontiers in neural circuits2017

Evolution, Development and Function of Vertebrate Cone Oil Droplets.

Matthew B Toomey, Joseph C Corbo

Open access · goldAbstract readReview
In one paragraph

Review in Frontiers in neural circuits, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
2.2field-weighted citation impact, top 12% 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

28 citing papers in PubMed, 80 citations in OpenAlex.

  1. Article
  2. Article
  3. Minimal Mimics and Maps of Natural Light for Mammals.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2026
    Article
  4. Article
  5. Article
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  7. Article
  8. Article
  9. Article
  10. Article
  11. Review
  12. Article
  13. Article
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  15. Review
  16. Article
  17. An Overview of the Penguin Visual System.Vision (Basel, Switzerland) · 2023
    Review
  18. Aster la vista: Unraveling the biochemical basis of carotenoid homeostasis in the human retina.BioEssays : news and reviews in molecular, cellular and developmental biology · 2022
    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

2 authors at 1 institution in 1 country.

Matthew B ToomeyDepartment of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO, United States.
Joseph C CorboDepartment of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO, United States.
Washington University in St. Louis · US

Funding

TRAINING PROGRAM IN VISION SCIENCET32EY007043 · NEI · UNIVERSITY OF CALIFORNIA BERKELEY · PI Suzanne MJ FLEISZIG · 1985 to 2026
$12.9M
DISSECTING THE CIS-REGULATORY ARCHITECTURE OF THE RETINA BY EPIGENOMIC PROFILINGR01EY025196 · NEI · WASHINGTON UNIVERSITY · PI CORBO, JOSEPH · 2015 to 2019
$2.3M
CONVERTING BIPOLAR CELLS INTO RED-SHIFTED OPTOGENETIC SENSORS FOR RETINAL THERAPYR01EY024958 · NEI · WASHINGTON UNIVERSITY · PI CORBO, JOSEPH, FLANNERY, JOHN GERARD · 2015 to 2019
$2.2M
DECIPHERING THE MECHANISTIC BASIS OF INFRARED VISION FOR OPTOGENETIC APPLICATIONSR01EY026672 · NEI · WASHINGTON UNIVERSITY · PI CORBO, JOSEPH · 2016 to 2019
$1.4M
NEI NIH HHS R01 EY024958NEI NIH HHS R01 EY025196NEI NIH HHS R01 EY026672NEI NIH HHS T32 EY007043
6 · The paper itself

Abstract

To distinguish colors, the nervous system must compare the activity of distinct subtypes of photoreceptors that are maximally sensitive to different portions of the light spectrum. In vertebrates, a variety of adaptations have arisen to refine the spectral sensitivity of cone photoreceptors and improve color vision. In this review article, we focus on one such adaptation, the oil droplet, a unique optical organelle found within the inner segment of cone photoreceptors of a diverse array of vertebrate species, from fish to mammals. These droplets, which consist of neutral lipids and carotenoid pigments, are interposed in the path of light through the photoreceptor and modify the intensity and spectrum of light reaching the photosensitive outer segment. In the course of evolution, the optical function of oil droplets has been fine-tuned through changes in carotenoid content. Species active in dim light reduce or eliminate carotenoids to enhance sensitivity, whereas species active in bright light precisely modulate carotenoid double bond conjugation and concentration among cone subtypes to optimize color discrimination and color constancy. Cone oil droplets have sparked the curiosity of vision scientists for more than a century. Accordingly, we begin by briefly reviewing the history of research on oil droplets. We then discuss what is known about the developmental origins of oil droplets. Next, we describe recent advances in understanding the function of oil droplets based on biochemical and optical analyses. Finally, we survey the occurrence and properties of oil droplets across the diversity of vertebrate species and discuss what these patterns indicate about the evolutionary history and function of this intriguing organelle.

Indexed as

AnimalsBiological EvolutionColor VisionHumansOrganellesRetinaRetinal Cone Photoreceptor CellsVertebratescarotenoidscolor visioncone photoreceptordim-light visionphotoprotectionspectral sensitivityvisual ecology

Identifiers

PMID29276475
PMCPMC5727011
OpenAlexW2771556050

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.