Evidence map›Paper›PMID 24886524›Full record

ArticleJournal of neuroinflammation2014

Neonatal systemic inflammation in rats alters retinal vessel development and simulates pathologic features of retinopathy of prematurity.

Hye Kyoung Hong, Hyun Ju Lee, Jung Hwa Ko, Ji Hyun Park, Ji Yeon Park, Chang Won Choi, Chang-Hwan Yoon, Seong Joon Ahn, Kyu Hyung Park, Se Joon Woo and 1 more

Open access · goldAbstract read
In one paragraph

Article in Journal of neuroinflammation, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 44 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
44citing papers in PubMed, 2 pooled it
2.7field-weighted citation impact, top 11% 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

44 citing papers in PubMed, 2 syntheses or guidelines pooled it, 62 citations in OpenAlex.

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  13. SOCS3 regulates pathological retinal angiogenesis through modulating SPP1 expression in microglia and macrophages.Molecular therapy : the journal of the American Society of Gene Therapy · 2024
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  16. Pathophysiology of Retinopathy of Prematurity.Annual review of vision science · 2023
    Review
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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

11 authors at 3 institutions in 1 country.

Hye Kyoung Hong
Hyun Ju Lee
Jung Hwa Ko
Ji Hyun Park
Ji Yeon Park
Chang Won Choi
Chang-Hwan Yoon
Seong Joon Ahn
Kyu Hyung Park
Se Joon WooDepartment of Ophthalmology, Seoul National University Bundang Hospital, 300 Gumi-dong, Seongnam 463-707, Korea. sejoon1@snu.ac.kr.
Joo Youn Oh
Seoul National University Bundang Hospital · KRSeoul National University · KRSeoul National University Hospital · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAlteration of retinal angiogenesis during development leads to retinopathy of prematurity (ROP) in preterm infants, which is a leading cause of visual impairment in children. A number of clinical studies have reported higher rates of ROP in infants who had perinatal infections or inflammation, suggesting that exposure of the developing retina to inflammation may disturb retinal vessel development. Thus, we investigated the effects of systemic inflammation on retinal vessel development and retinal inflammation in neonatal rats.

methodsTo induce systemic inflammation, we intraperitoneally injected 100 μl lipopolysaccharide (LPS, 0.25 mg/ml) or the same volume of normal saline in rat pups on postnatal days 1, 3, and 5. The retinas were extracted on postnatal days 7 and 14, and subjected to assays for retinal vessels, inflammatory cells and molecules, and apoptosis.

resultsWe found that intraperitoneal injection of LPS impaired retinal vessel development by decreasing vessel extension, reducing capillary density, and inducing localized overgrowth of abnormal retinal vessels and dilated peripheral vascular ridge, all of which are characteristic findings of ROP. Also, a large number of CD11c+ inflammatory cells and astrocytes were localized in the lesion of abnormal vessels. Further analysis revealed that the number of major histocompatibility complex (MHC) class IIloCD68loCD11bloCD11chi cells in the retina was higher in LPS-treated rats compared to controls. Similarly, the levels of TNF-α, IL-1β, and IL-12a were increased in LPS-treated retina. Also, apoptosis was increased in the inner retinal layer where retinal vessels are located.

conclusionsOur data demonstrate that systemic LPS-induced inflammation elicits retinal inflammation and impairs retinal angiogenesis in neonatal rats, implicating perinatal inflammation in the pathogenesis of ROP.

Indexed as

Age FactorsAnimalsAnimals, NewbornApoptosisCD11 AntigensCytokinesDisease Models, AnimalFemaleFlow CytometryGene Expression Regulation, DevelopmentalInflammationLectinsLipopolysaccharidesMalePregnancyRatsCD11 AntigensCytokinesLectinsLipopolysaccharidesThrombospondin 1

Identifiers

PMID24886524
PMCPMC4030274
OpenAlexW2156382689

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.