Evidence map›Paper›PMID 22480975›Full record

ReviewProgress in retinal and eye research2012

Diverse types of ganglion cell photoreceptors in the mammalian retina.

Andrea Sand, Tiffany M Schmidt, Paulo Kofuji

Open access · greenAbstract 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 38 papers.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed
3.3field-weighted citation impact, top 7% 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

38 citing papers in PubMed, 102 citations in OpenAlex.

  1. A complete spatial map of mouse retinal ganglion cells reveals density and gene expression specializations.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  2. Article
  3. Review
  4. Article
  5. Article
  6. Article
  7. Colour and melanopsin mediated responses in the murine retina.Frontiers in cellular neuroscience · 2023
    Article
  8. Differential susceptibility of retinal ganglion cell subtypes against neurodegenerative diseases.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2022
    Review
  9. Article
  10. Review
  11. Review
  12. Review
  13. Form vision from melanopsin in humans.Nature communications · 2019
    Article
  14. Article
  15. Article
  16. Circadian rhythms, refractive development, and myopia.Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists) · 2018
    Review
  17. Review
  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

3 authors at 2 institutions in 1 country.

Andrea SandDepartment of Neuroscience, University of Minnesota, 6-145 Jackson Hall, 321 Church St SE, Minneapolis, MN 55455, USA.
Tiffany M Schmidt
Paulo Kofuji
University of Minnesota · USJohns Hopkins University · US

Funding

PHYSIOLOGY OF POTASSIUM CHANNELS IN RETINAL GLIAL CELLSR01EY012949 · NEI · UNIVERSITY OF MINNESOTA TWIN CITIES · PI KOFUJI, PAULO · 2000 to 2009
$2.7M
Melanopsin-expressing retinal ganglion cells: novel genetic toolsR21EY018885 · NEI · UNIVERSITY OF MINNESOTA · PI KOFUJI, PAULO · 2008 to 2009
$399k
NEI NIH HHS R01 EY012949NEI NIH HHS R01EY012949NEI NIH HHS R21 EY018885NEI NIH HHS R21-EY018885NEI NIH HHS T32 EY0707133
6 · The paper itself

Abstract

Photoreceptors carry out the first step in vision by capturing light and transducing it into electrical signals. Rod and cone photoreceptors efficiently translate photon capture into electrical signals by light activation of opsin-type photopigments. Until recently, the central dogma was that, for mammals, all phototransduction occurred in rods and cones. However, the recent discovery of a novel photoreceptor type in the inner retina has fundamentally challenged this view. These retinal ganglion cells are intrinsically photosensitive and mediate a broad range of physiological responses such as photoentrainment of the circadian clock, light regulation of sleep, pupillary light reflex, and light suppression of melatonin secretion. Intrinsically photosensitive retinal ganglion cells express melanopsin, a novel opsin-based signaling mechanism reminiscent of that found in invertebrate rhabdomeric photoreceptors. Melanopsin-expressing retinal ganglion cells convey environmental irradiance information directly to brain centers such as the hypothalamus, preoptic nucleus, and lateral geniculate nucleus. Initial studies suggested that these melanopsin-expressing photoreceptors were an anatomically and functionally homogeneous population. However, over the past decade or so, it has become apparent that these photoreceptors are distinguishable as individual subtypes on the basis of their morphology, molecular markers, functional properties, and efferent projections. These results have provided a novel classification scheme with five melanopsin photoreceptor subtypes in the mammalian retina, each presumably with differential input and output properties. In this review, we summarize the evidence for the structural and functional diversity of melanopsin photoreceptor subtypes and current controversies in the field.

Indexed as

AnimalsCircadian RhythmHumansMelanopsinPhotoreceptor Cells, VertebrateReflex, PupillaryRetinal Ganglion CellsRetinal Photoreceptor Cell Inner SegmentRod OpsinsMelanopsinRod Opsins

Identifiers

PMID22480975
PMCPMC3361613
OpenAlexW2044447804

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.