Evidence map›Paper›PMID 24764063›Full record

ArticleInvestigative ophthalmology & visual science2014

Examination of VLC-PUFA-deficient photoreceptor terminals.

Lea D Bennett, Blake R Hopiavuori, Richard S Brush, Michael Chan, Matthew J Van Hook, Wallace B Thoreson, Robert E Anderson

Open access · bronzeAbstract read
In one paragraph

Article in Investigative ophthalmology & visual science, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
1.3field-weighted citation impact, top 22% 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

21 citing papers in PubMed, 36 citations in OpenAlex.

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  10. Transmission at rod and cone ribbon synapses in the retina.Pflugers Archiv : European journal of physiology · 2021
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  12. Retinal bioavailability and functional effects of a synthetic very-long-chain polyunsaturated fatty acid in mice.Proceedings of the National Academy of Sciences of the United States of America · 2021
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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

7 authors at 3 institutions in 1 country.

Lea D BennettDepartment of Cell Biology, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, United States Dean McGee Eye Institute, Oklahoma City, Oklahoma, United States.
Blake R HopiavuoriDean McGee Eye Institute, Oklahoma City, Oklahoma, United States Oklahoma Center for Neuroscience, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, United States.
Richard S BrushDean McGee Eye Institute, Oklahoma City, Oklahoma, United States Department of Ophthalmology, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, United States.
Michael ChanDean McGee Eye Institute, Oklahoma City, Oklahoma, United States Department of Ophthalmology, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, United States.
Matthew J Van HookDepartment of Ophthalmology and Visual Sciences, University of Nebraska Medical Center, Omaha, Nebraska, United States.
Wallace B ThoresonDepartment of Ophthalmology and Visual Sciences, University of Nebraska Medical Center, Omaha, Nebraska, United States Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, Nebraska, United States.
Robert E AndersonDepartment of Cell Biology, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, United States.
University of Oklahoma Health Sciences Center · USUniversity of Nebraska Medical Center · USDean McGee Eye Institute · US

Funding

UNDERSTANDING THE ROLE OF RETINOL DEHYDROGENASES RDH11 AND RDH12 IN VISIONP20RR017703 · NCRR · UNIVERSITY OF OKLAHOMA HLTH SCIENCES CTR · PI MANDAL, NAWAJES · 2002 to 2011
$23.6M
P30-CENTER CORE GRANT FOR VISION RESEARCHP30EY021725 · NEI · UNIVERSITY OF OKLAHOMA HLTH SCIENCES CTR · PI Michelle C Callegan · 2011 to 2026
$10.5M
ROLE OF LIPID PEROXIDATIONS IN RETINAL DEGENERATIONSR01EY004149 · NEI · UNIVERSITY OF OKLAHOMA HLTH SCIENCES CTR · PI ANDERSON, ROBERT E · 1985 to 2018
$8.3M
Regulation of Photoreceptor NeurotransmisssionR01EY010542 · NEI · UNIVERSITY OF NEBRASKA MEDICAL CENTER · PI KARATEKIN, ERDEM, THORESON, WALLACE B · 2001 to 2023
$7.7M
SECOND MESSENGERS IN THE RETINAR01EY000871 · NEI · UNIVERSITY OF OKLAHOMA HLTH SCIENCES CTR · PI RAJALA, RAJU VS · 1985 to 2020
$7.2M
CHLORIDE REGULATION OF PHOTORECEPTOR NEUROTRANSMISSIONR29EY010542 · NEI · UNIVERSITY OF NEBRASKA MEDICAL CENTER · PI THORESON, WALLACE B · 1996 to 2000
$105k
METABOTROPIC GLUTAMATE RECEPTORS IN RETINAL NEURONSR55EY010542 · NEI · UNIVERSITY OF NEBRASKA MEDICAL CENTER · PI THORESON, WALLACE B · 1994 to 1994
–
NCRR NIH HHS P20 RR017703NCRR NIH HHS P20RR017703NEI NIH HHS EY00871NEI NIH HHS EY04149NEI NIH HHS EY10542NEI NIH HHS P30 EY021725NEI NIH HHS P30EY021725NEI NIH HHS R01 EY000871NEI NIH HHS R01 EY004149NEI NIH HHS R01 EY010542NEI NIH HHS R29 EY010542
6 · The paper itself

Abstract

purposeJuvenile-onset autosomal dominant Stargardt-like macular dystrophy (STGD3) is caused by mutations in ELOVL4 (elongation of very long fatty acids-4), an elongase necessary for the biosynthesis of very long chain fatty acids (VLC-FAs ≥ C26). Photoreceptors are enriched with VLC polyunsaturated fatty acids (VLC-PUFAs), which are necessary for long-term survival of rod photoreceptors. The purpose of these studies was to determine the effect of deletion of VLC-PUFAs on rod synaptic function in retinas of mice conditionally depleted (KO) of Elovl4.

methodsRetina function was assessed in wild-type (WT) and KO by electroretinography. Outer plexiform structure was evaluated by immunofluorescence and transmission electron microscopy. Single-cell recordings measured rod ion channel operation and rod bipolar glutamate signaling. Sucrose gradient centrifugation was used to isolate synaptosomes from bovine retina. Proteins and lipids were analyzed by Western blotting and tandem mass spectroscopy, respectively.

resultsInner retinal responses (b-wave, oscillatory potentials, and scotopic threshold responses) of the ERG were decreased in the KO mice compared to controls. However the rod ion channel operation and bipolar glutamate responses were comparable between groups. Biochemical analysis revealed that conventional and ribbon synapses have VLC-PUFAs. Ultrastructural analysis showed that the outer plexiform layer was disorganized and the diameter of vesicles in rod terminals was smaller in the KO mice.

conclusionsVery long chain PUFAs affect rod function by contributing to synaptic vesicle size, which may alter the dynamics of synaptic transmission, ultimately resulting in a loss of neuronal connectivity and death of rod photoreceptors.

Indexed as

MutationAnimalsBlotting, WesternCattleDisease Models, AnimalElectroretinographyEye ProteinsFatty Acids, UnsaturatedLipidsMacular DegenerationMembrane ProteinsMiceMice, KnockoutMicroscopy, Electron, TransmissionPhotoreceptor Cells, VertebrateRetinaElovl4 protein, mouseEye ProteinsFatty Acids, UnsaturatedLipidsMembrane ProteinsELOVL4STDG3VLC-PUFA

Identifiers

PMID24764063
PMCPMC4083770
OpenAlexW1967138719

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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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.