Evidence map›Paper›PMID 24556690›Full record

ArticleCell death & disease2014

Arginase 2 deficiency reduces hyperoxia-mediated retinal neurodegeneration through the regulation of polyamine metabolism.

S P Narayanan, Z Xu, N Putluri, A Sreekumar, T Lemtalsi, R W Caldwell, R B Caldwell

Open access · goldAbstract read
In one paragraph

Article in Cell death & disease, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 49 papers.

0numbers the graph read from it
0cells of the map it votes in
49citing papers in PubMed
3.0field-weighted citation impact, top 10% 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

49 citing papers in PubMed, 71 citations in OpenAlex.

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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 4 institutions in 1 country.

S P Narayanan1] Vision Discovery Institute, Georgia Regents University, Augusta, GA, USA [2] Vascular Biology Center, Georgia Regents University, Augusta, GA, USA [3] Department of Cellular Biology and Anatomy, Georgia Regents University, Augusta, GA, USA.
Z Xu1] Vision Discovery Institute, Georgia Regents University, Augusta, GA, USA [2] Vascular Biology Center, Georgia Regents University, Augusta, GA, USA.
N PutluriDepartment of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX, USA.
A SreekumarDepartment of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX, USA.
T Lemtalsi1] Vision Discovery Institute, Georgia Regents University, Augusta, GA, USA [2] Vascular Biology Center, Georgia Regents University, Augusta, GA, USA.
R W CaldwellDepartment of Pharmacology and Toxicology, Georgia Regents University, Augusta, GA, USA.
R B Caldwell1] Vision Discovery Institute, Georgia Regents University, Augusta, GA, USA [2] Vascular Biology Center, Georgia Regents University, Augusta, GA, USA [3] Department of Cellular Biology and Anatomy, Georgia Regents University, Augusta, GA, USA [4] Charlie Norwood VA Medical Center, Augusta, GA, USA.
Augusta University · USBaylor College of Medicine · USDiscovery Institute · USGeorgia Regents Medical Center · US

Funding

Cellular Mechanisms of Retinopathy: Role of ArginaseR01EY011766 · NEI · MEDICAL COLLEGE OF GEORGIA (MCG) · PI CALDWELL, ROBERT WILLIAM, CALDWELL, RUTH B · 1998 to 2021
$6.7M
L-arginine metabolism in diabetes-induced coronary dysfunctionR01HL070215 · NHLBI · MEDICAL COLLEGE OF GEORGIA (MCG) · PI CALDWELL, ROBERT WILLIAM · 2002 to 2011
$2.3M
Integrative Metabolomics of Prostate Cancer ProgressionR01CA133458 · NCI · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI SREEKUMAR, ARUN · 2008 to 2012
$1.6M
Mechanisms of Diabetic Retinopathy: Oxidative Stress and InflammationI01BX001233 · VA · CHARLIE NORWOOD VA MEDICAL CENTER · PI CALDWELL, RUTH B · 2012 to 2015
–
American Heart Association-American Stroke Association 11SDG7440088BLRD VA I01 BX001233NCI NIH HHS 1R01CA133458-01NCI NIH HHS R01 CA133458NEI NIH HHS EY011766NEI NIH HHS R01 EY011766NHLBI NIH HHS HL070215NHLBI NIH HHS R01 HL070215
6 · The paper itself

Abstract

Hyperoxia treatment has been known to induce neuronal and glial death in the developing central nervous system. Retinopathy of prematurity (ROP) is a devastating disease in premature infants and a major cause of childhood vision impairment. Studies indicate that, in addition to vascular injury, retinal neurons are also affected in ROP. Using an oxygen-induced retinopathy (OIR) mouse model for ROP, we have previously shown that deletion of the arginase 2 (A2) significantly reduced neuro-glial injury and improved retinal function. In the current study, we investigated the mechanism of A2 deficiency-mediated neuroprotection in the OIR retina. Hyperoxia treatment has been known to induce neuronal death in neonates. During the hyperoxia phase of OIR, a significant increase in the number of apoptotic cells was observed in the wild-type (WT) OIR retina compared with A2-deficient OIR. Mass spectrometric analysis showed alterations in polyamine metabolism in WT OIR retina. Further, increased expression level of spermine oxidase was observed in WT OIR retina, suggesting increased oxidation of polyamines in OIR retina. These changes were minimal in A2-deficient OIR retina. Treatment using the polyamine oxidase inhibitor, N, N'-bis (2, 3-butadienyl)-1, 4-butanediamine dihydrochloride, significantly improved neuronal survival during OIR treatment. Our data suggest that retinal arginase is involved in the hyperoxia-induced neuronal degeneration in the OIR model, through the regulation of polyamine metabolism.

Indexed as

ApoptosisAnimalsAnimals, NewbornArginaseDisease Models, AnimalEnzyme InhibitorsHyperargininemiaHyperoxiaMiceMice, KnockoutNeuroprotective AgentsOxidoreductases Acting on CH-NH Group DonorsPolyamine OxidasePolyaminesRetinal DegenerationRetinal NeuronsArg2 protein, mouseArginaseEnzyme InhibitorsNeuroprotective AgentsOxidoreductases Acting on CH-NH Group DonorsPolyamine OxidasePolyamines

Identifiers

PMID24556690
PMCPMC3944241
OpenAlexW2013248933

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.