Evidence map›Paper›PMID 27060376›Full record

ArticleExperimental eye research2016

Ischemic preconditioning, retinal neuroprotection and histone deacetylase activities.

Jie Fan, Oday Alsarraf, C James Chou, Phillip W Yates, Nicole C Goodwin, Dennis S Rice, Craig E Crosson

Open access · greenAbstract read
In one paragraph

Article in Experimental eye research, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
1.4field-weighted citation impact, top 18% 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

13 citing papers in PubMed, 18 citations in OpenAlex.

  1. Review
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  6. Article
  7. HDAC2 Regulates Glial Cell Activation in Ischemic Mouse Retina.International journal of molecular sciences · 2019
    Article
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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 2 institutions in 1 country.

Jie Fan167 Ashley Avenue, Storm Eye Institute, Department of Ophthalmology, Medical University of South Carolina, Charleston, SC, 29425, USA. Electronic address: fan@musc.edu.
Oday Alsarraf167 Ashley Avenue, Storm Eye Institute, Department of Ophthalmology, Medical University of South Carolina, Charleston, SC, 29425, USA.
C James Chou167 Ashley Avenue, Storm Eye Institute, Department of Ophthalmology, Medical University of South Carolina, Charleston, SC, 29425, USA.
Phillip W Yates167 Ashley Avenue, Storm Eye Institute, Department of Ophthalmology, Medical University of South Carolina, Charleston, SC, 29425, USA.
Nicole C GoodwinLexicon Pharmaceuticals, The Woodlands, TX, 77381, USA.
Dennis S RiceLexicon Pharmaceuticals, The Woodlands, TX, 77381, USA.
Craig E Crosson167 Ashley Avenue, Storm Eye Institute, Department of Ophthalmology, Medical University of South Carolina, Charleston, SC, 29425, USA.
Medical University of South Carolina · USLexicon Pharmaceuticals (United States) · US

Funding

Protein Acetylation in Glaucomatous Optic NeuropathyR01EY021368 · NEI · MEDICAL UNIVERSITY OF SOUTH CAROLINA · PI CROSSON, CRAIG E. · 2011 to 2014
$1.4M
NEI NIH HHS R01 EY021368
6 · The paper itself

Abstract

Increased histone deacetylase (HDAC) activity and the resulting dysregulation of protein acetylation is an integral event in retinal degenerations associated with ischemia and ocular hypertension. This study investigates the role of preconditioning on the process of acetylation in ischemic retinal injury. Rat eyes were unilaterally subjected to retinal injury by 45 min of acute ischemia, and retinal neuroprotection induced by 5 min of an ischemic preconditioning (IPC) event. HDAC activity was evaluated by a fluorometric enzymatic assay with selective isoform inhibitors. Retinal localization of acetylated histone-H3 was determined by immunohistochemistry on retina cross sections. Cleaved caspase-3 level was evaluated by Western blots. Electroretinogram (ERG) analyses were used to assess differences in retinal function seven days following ischemic injury. In control eyes, analysis of HDAC isoforms demonstrated that HDAC1/2 accounted for 28.4 ± 1.6%, HDAC3 for 42.4 ± 1.5% and HDAC6 activity 27.3 ± 3.5% of total activity. Following ischemia, total Class-I HDAC activity increased by 21.2 ± 6.2%, and this increase resulted solely from a rise in HDAC1/2 activity. No change in HDAC3 activity was measured. Activity of Class-II HDACs and HDAC8 was negligible. IPC stimulus prior to ischemic injury also suppressed the rise in Class-I HDAC activity, cleaved caspase-3 levels, and increased acetylated histone-H3 in the retina. In control animals 7 days post ischemia, ERG a- and b-wave amplitudes were significantly reduced by 34.9 ± 3.1% and 42.4 ± 6.3%, respectively. In rats receiving an IPC stimulus, the ischemia-induced decline in ERG a- and b-wave amplitudes was blocked. Although multiple HDACs were detected in the retina, these studies provide evidence that hypoacetylation associated with ischemic injury results from the selective rise in HDAC1/2 activity and that neuroprotection induced by IPC is mediated in part by suppressing HDAC activity.

Indexed as

Ischemic PreconditioningAcetylationAnalysis of VarianceAnimalsBlotting, WesternCaspase 3Disease Models, AnimalElectroretinographyHistone DeacetylasesHistonesImmunohistochemistryMaleNeuroprotectionRatsRetinaCaspase 3Histone DeacetylasesHistonesHDACIschemiaNeuroprotectionPreconditioningProtein acetylationRetina

Identifiers

PMID27060376
PMCPMC4893999
OpenAlexW2323115246

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.