Evidence map›Paper›PMID 23620427›Full record

ArticleInvestigative ophthalmology & visual science2013

Structural and functional effects of hemiretinal endodiathermy axotomy in cynomolgus macaques.

Ryan J Dashek, Charlene B Y Kim, Carol A Rasmussen, Elizabeth A Hennes-Beean, James N Ver Hoeve, T Michael Nork

Open access · bronzeAbstract read
In one paragraph

Article in Investigative ophthalmology & visual science, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
0.6field-weighted citation impact, top 32% 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

6 citing papers in PubMed, 9 citations in OpenAlex.

  1. Preexisting Fundus Findings in a Large Cohort of Young Cynomolgus Macaques (Journal of ocular pharmacology and therapeutics : the official journal of the Association for Ocular Pharmacology and Therapeutics · 2026
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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

6 authors at 1 institution in 1 country.

Ryan J DashekDepartment of Ophthalmology and Visual Sciences, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin 53792-3220, USA.
Charlene B Y Kim
Carol A Rasmussen
Elizabeth A Hennes-Beean
James N Ver Hoeve
T Michael Nork
University of Wisconsin–Madison · US

Funding

WNPRC Supplemental Request for Nonhuman Primate Enclosures to Equip HIV/AIDS-Related Research FacilitiesP51OD011106 · OD · UNIVERSITY OF WISCONSIN-MADISON · PI Dorota A. Grejner-Brzezinska · 2012 to 2026
$150.7M
ZOLEDRONATE PREVENTS BONE LOSS IN OVARIECTOMIZED RHESUS MONKEYSP51RR000167 · NCRR · UNIVERSITY OF WISCONSIN-MADISON · PI WATKINS, DAVID I · 1985 to 2011
$106.7M
UW Vision Research Core - Administrative CoreP30EY016665 · NEI · UNIVERSITY OF WISCONSIN-MADISON · PI ROBERT W NICKELLS · 2005 to 2026
$12.6M
The Role of Outer Retinal Injury in GlaucomaR01EY014041 · NEI · UNIVERSITY OF WISCONSIN MADISON · PI NORK, T MICHAEL · 2002 to 2004
$1.1M
NCRR NIH HHS P51 RR000167NCRR NIH HHS P51RR000167NEI NIH HHS P30 EY016665NEI NIH HHS R01 EY014041NIH HHS P51 OD011106NIH HHS P51OD011106
6 · The paper itself

Abstract

purposeOuter retinal injury has been well described in glaucoma. To better understand the source of this injury, we wanted to develop a reliable model of partial retinal ganglion cell (RGC) axotomy.

methodsEndodiathermy spots were placed along the inferior 180° adjacent to the optic nerve margin in the right eyes of four cynomolgus monkeys. Fluorescein angiography, spectral domain optical coherence tomography (SD-OCT), and multifocal electroretinography (mfERG) were performed at various intervals. Two animals were sacrificed at 3 months. Two animals were sacrificed at 4 months, at which time they underwent an injection of fluorescent microspheres to measure regional choroidal blood flow. Retinal immunohistochemistry for glial fibrillary acidic protein (GFAP), rhodopsin, S-cone opsin, and M/L-cone opsin were performed, as were axon counts of the optic nerves.

resultsAt 3 months, there was marked thinning of the inferior nerve fiber layer on SD-OCT. The mfERG waveforms were consistent with inner but not outer retinal injury. Greater than 95% reduction in axons was seen in the inferior optic nerves but no secondary degeneration superiorly. There was marked thinning of the nerve fiber and ganglion cell layers in the inferior retinas. However, the photoreceptor histology was similar in the axotomized and nonaxotomized areas. Regional choroidal blood flow was not affected by the axotomy.

conclusionsUnlike experimental glaucoma, hemiretinal endodiathermy axotomy (HEA) of the RGCs produces no apparent anatomic, functional, or blood flow effects on the outer retina and choroid.

Indexed as

AxotomyDisease Models, AnimalAnimalsChoroidElectrocoagulationElectroretinographyFemaleFluorescein AngiographyGlial Fibrillary Acidic ProteinImmunohistochemistryMacaca fascicularisMaleNerve FibersOpsinsPhotoreceptor Cells, VertebrateRetinaGlial Fibrillary Acidic ProteinOpsinsRhodopsinchoroidal blood flowendodiathermy axotomymultifocal electroretinographyoptical coherence tomographyphotoreceptor morphology

Identifiers

PMID23620427
PMCPMC3658266
OpenAlexW1965264136

What OpenQuestion holds

Textmetadata
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.