Evidence map›Paper›PMID 21262973›Full record

ArticleThe Journal of biological chemistry2011

Erythropoietin protects intestinal epithelial barrier function and lowers the incidence of experimental neonatal necrotizing enterocolitis.

Sheng-Ru Shiou, Yueyue Yu, Sangzi Chen, Mae J Ciancio, Elaine O Petrof, Jun Sun, Erika C Claud

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 72 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
72citing papers in PubMed, 5 pooled it
6.8field-weighted citation impact, top 3% 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

72 citing papers in PubMed, 5 syntheses or guidelines pooled it, 113 citations in OpenAlex.

  1. Pooled it
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  17. Therapeutic peptides: current applications and future directions.Signal transduction and targeted therapy · 2022
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12 more citing papers are in PubMed but not listed here.

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 2 countries.

Sheng-Ru ShiouDepartment of Pediatrics, Section of Neonatology, University of Chicago, Chicago, IL 60637, USA.
Yueyue Yu
Sangzi Chen
Mae J Ciancio
Elaine O Petrof
Jun Sun
Erika C Claud
Midwestern University · USQueen's University · CAUniversity of Chicago · USUniversity of Rochester · US

Funding

ULTRASTRUCTURE AND CYTOMORPHOLOGY COREP30DK042086 · NIDDK · UNIVERSITY OF CHICAGO · PI CHANG, EUGENE B · 1990 to 2025
$29.8M
Immature intestinal NF-kB regulation, probiotics, and necrotizing enterocolitisR01HD059123 · NICHD · UNIVERSITY OF CHICAGO · PI CLAUD, ERIKA C · 2009 to 2013
$1.8M
Use of Probiotic Conditioned Media to Protect Against Necrotizing EnterocolitisR21AT004044 · NCCIH · UNIVERSITY OF CHICAGO · PI CLAUD, ERIKA C, PETROF, ELAINE O · 2008 to 2009
$424k
Early Enterocyte Injury in Neonatal Necrotizing EnterocolitisR21HD055237 · NICHD · UNIVERSITY OF CHICAGO · PI CLAUD, ERIKA C · 2008 to 2009
$422k
Human Milk Factor Protection in Neonatal Necrotizing EnterocolitisF32HD062144 · NICHD · UNIVERSITY OF CHICAGO · PI SHIOU, SHENG-RU · 2010 to 2012
$170k
NCCIH NIH HHS R21 AT004044NICHD NIH HHS F32 HD062144NICHD NIH HHS HD055237NICHD NIH HHS R01 HD059123NICHD NIH HHS R21 HD055237NIDDK NIH HHS DK42086NIDDK NIH HHS P30 DK042086
6 · The paper itself

Abstract

The impermeant nature of the intestinal barrier is maintained by tight junctions (TJs) formed between adjacent intestinal epithelial cells. Disruption of TJs and loss of barrier function are associated with a number of gastrointestinal diseases, including neonatal necrotizing enterocolitis (NEC), the leading cause of death from gastrointestinal diseases in preterm infants. Human milk is protective against NEC, and the human milk factor erythropoietin (Epo) has been shown to protect endothelial cell-cell and blood-brain barriers. We hypothesized that Epo may also protect intestinal epithelial barriers, thereby lowering the incidence of NEC. Our data demonstrate that Epo protects enterocyte barrier function by supporting expression of the TJ protein ZO-1. As immaturity is a key factor in NEC, Epo regulation of ZO-1 in the human fetal immature H4 intestinal epithelial cell line was examined and demonstrated Epo-stimulated ZO-1 expression in a dose-dependent manner through the PI3K/Akt pathway. In a rat NEC model, oral administration of Epo lowered the incidence of NEC from 45 to 23% with statistical significance. In addition, Epo treatment protected intestinal barrier function and prevented loss of ZO-1 at the TJs in vivo. These effects were associated with elevated Akt phosphorylation in the intestine. This study reveals a novel role of Epo in the regulation of intestinal epithelial TJs and barrier function and suggests the possible use of enteral Epo as a therapeutic agent for gut diseases.

Indexed as

AnimalsAnimals, NewbornCell Line, TumorDisease Models, AnimalElectric ImpedanceEnterocolitis, NecrotizingEnterocytesErythropoietinFluorescent Antibody TechniqueHumansImmunoblottingIntestinal MucosaIntestinesMembrane ProteinsPhosphatidylinositol 3-KinasesPhosphoinositide-3 Kinase InhibitorsErythropoietinMembrane ProteinsPhosphatidylinositol 3-KinasesPhosphoinositide-3 Kinase InhibitorsPhosphoproteinsProto-Oncogene Proteins c-aktTJP1 protein, humanTjp1 protein, ratZonula Occludens-1 Protein

Identifiers

PMID21262973
PMCPMC3069416
OpenAlexW2089685254

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.