Evidence map›Paper›PMID 20808732›Full record

ArticleMolecular vision2010

Light-dependant intraretinal ion regulation by melanopsin in young awake and free moving mice evaluated with manganese-enhanced MRI.

Bruce A Berkowitz, Robin Roberts, David Bissig

Open access · greenAbstract read
In one paragraph

Article in Molecular vision, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
0.8field-weighted citation impact, top 30% 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

16 citing papers in PubMed, 19 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Article
  5. Article
  6. Review
  7. MRI of Retinal Free Radical Production With Laminar Resolution In Vivo.Investigative ophthalmology & visual science · 2016
    Article
  8. Photoreceptors in diabetic retinopathy.Journal of diabetes investigation · 2015
    Review
  9. Article
  10. Development of an MRI biomarker sensitive to tetrameric visual arrestin 1 and its reduction via light-evoked translocation in vivo.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2015
    Article
  11. Article
  12. Review
  13. Article
  14. Review
  15. Article
  16. 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 1 institution in 1 country.

Bruce A BerkowitzDepartment of Anatomy and Cell Biology, Wayne State University, Detroit, MI 48201, USA. baberko@med.wayne.edu
Robin Roberts
David Bissig
Wayne State University · US

Funding

Manganese-enhanced MRI Studies of Retinal NeovascularizationR21EY018109 · NEI · WAYNE STATE UNIVERSITY · PI BERKOWITZ, BRUCE A. · 2007 to 2008
$409k
NEI NIH HHS EY018109NEI NIH HHS R21 EY018109
6 · The paper itself

Abstract

purposeTo test the hypothesis that in young, functionally blind mice, light-dependent intraretinal ion regulation occurs via melanopsin.

methodsPostnatal day (P) 7 wild type (WT, C57Bl/6) and melanopsin knockout (KO, opn4-/-, B6129) mice were light or dark adapted. Awake and freely moving animals were injected intraperitoneally (ip) with MnCl(2). Four hours later, the mice in both groups were anesthetized and studied with manganese-enhanced MRI (MEMRI) to measure the extent of intraretinal uptake of manganese and whole retinal thicknesses.

resultsIn control P7 mice, light exposure increased (p<0.05) retinal manganese uptake over that in dark. This difference was observed throughout most of the retina. In P7 KO mice, intraretinal manganese uptake did not differ from that in age-matched dark-adapted WT mice, and was not light-dependent. No differences in whole retinal thickness were noted between groups.

conclusionsFirst time evidence is presented which demonstrates intraretinal ion regulation by melanopsin in vivo.

Indexed as

LightMagnetic Resonance ImagingAgingAnimalsDarknessIonsManganeseMelanopsinMiceMice, Inbred C57BLMovementRetinaRod OpsinsWakefulnessIonsManganeseMelanopsinRod Opsins

Identifiers

PMID20808732
PMCPMC2929942
OpenAlexW165731464

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.