Evidence map›Paper›PMID 22051675›Full record

ArticleNature2011

Melanopsin signalling in mammalian iris and retina.

T Xue, M T H Do, A Riccio, Z Jiang, J Hsieh, H C Wang, S L Merbs, D S Welsbie, T Yoshioka, P Weissgerber and 6 more

Open access · greenAbstract read
In one paragraph

Article in Nature, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 163 papers.

0numbers the graph read from it
0cells of the map it votes in
163citing papers in PubMed
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

163 citing papers in PubMed, 299 citations in OpenAlex.

  1. Divergence of Melanopsin's Intrinsic Properties and Downstream Actions.bioRxiv : the preprint server for biology · 2026
    Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Review
  9. Article
  10. Review
  11. Review
  12. Implantable Self-Powered Systems for Electrical Stimulation Medical Devices.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025
    Review
  13. Review
  14. Article
  15. Article
  16. Thermosensory Roles of G Protein-Coupled Receptors and Other Cellular Factors in Animals.BioEssays : news and reviews in molecular, cellular and developmental biology · 2025
    Review
  17. Article
  18. Article
  19. Article
  20. Article

103 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

16 authors at 7 institutions in 2 countries.

T XueSolomon H. Snyder Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, USA. txue77@gmail.com
M T H Do
A Riccio
Z Jiang
J Hsieh
H C Wang
S L Merbs
D S Welsbie
T Yoshioka
P Weissgerber
S Stolz
V Flockerzi
M Freichel
M I Simon
D E Clapham
K-W Yau
Johns Hopkins Medicine · USSaarland University · DEJohns Hopkins University · USCalifornia Institute of Technology · USHarvard University · USHoward Hughes Medical Institute · USKennedy Krieger Institute · US

Funding

RESEARCH METHODS IN PEDIATRICS HEART DISEASET32HL007572 · NHLBI · CHILDREN'S HOSPITAL BOSTON · PI Sarah D DE FERRANTI, Jane W. Newburger · 1985 to 2026
$13.0M
Retinal melanopsin pathway: Signaling &ConnectivityR01EY014596 · NEI · JOHNS HOPKINS UNIVERSITY · PI KING-WAI YAU · 2003 to 2026
$11.9M
VISUAL TRANSDUCTION IN RETINAL PHOTORECEPTORSR01EY006837 · NEI · JOHNS HOPKINS UNIVERSITY · PI KING-WAI YAU · 1987 to 2026
$8.5M
Transduction mechanism in olfactory sensory neuronsR01DC006904 · NIDCD · JOHNS HOPKINS UNIVERSITY · PI YAU, KING-WAI · 2004 to 2013
$3.5M
VISUAL TRANSDUCTION IN RETINAL PHOTORECEPTORSR37EY006837 · NEI · JOHNS HOPKINS UNIVERSITY · PI YAU, KING-WAI · 1992 to 2002
$822k
Howard Hughes Medical InstituteNEI NIH HHS EY14596NEI NIH HHS R01 EY006837NEI NIH HHS R01 EY014596NEI NIH HHS R37 EY006837NHLBI NIH HHS T32 HL007572NIDCD NIH HHS R01 DC006904
6 · The paper itself

Abstract

Non-mammalian vertebrates have an intrinsically photosensitive iris and thus a local pupillary light reflex (PLR). In contrast, it is thought that the PLR in mammals generally requires neuronal circuitry connecting the eye and the brain. Here we report that an intrinsic component of the PLR is in fact widespread in nocturnal and crepuscular mammals. In mouse, this intrinsic PLR requires the visual pigment melanopsin; it also requires PLCβ4, a vertebrate homologue of the Drosophila NorpA phospholipase C which mediates rhabdomeric phototransduction. The Plcb4(-/-) genotype, in addition to removing the intrinsic PLR, also essentially eliminates the intrinsic light response of the M1 subtype of melanopsin-expressing, intrinsically photosensitive retinal ganglion cells (M1-ipRGCs), which are by far the most photosensitive ipRGC subtype and also have the largest response to light. Ablating in mouse the expression of both TRPC6 and TRPC7, members of the TRP channel superfamily, also essentially eliminated the M1-ipRGC light response but the intrinsic PLR was not affected. Thus, melanopsin signalling exists in both iris and retina, involving a PLCβ4-mediated pathway that nonetheless diverges in the two locations.

Indexed as

AnimalsIrisLight Signal TransductionMammalsMelanopsinMicePhospholipase C betaPhotic StimulationPrimatesReflex, PupillaryRetinaRetinal Ganglion CellsRod OpsinsMelanopsinPhospholipase C betaPlcb4 protein, mouseRod Opsins

Identifiers

PMID22051675
PMCPMC3270891
OpenAlexW2031626699

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.