Evidence map›Paper›PMID 34077474›Full record

ArticlePloS one2021

Endogenous erythropoietin concentrations and association with retinopathy of prematurity and brain injury in preterm infants.

Nancy M Fahim, Michael K Georgieff, Lei Zhang, Scott Naisbitt, Raghavendra B Rao, Terrie E Inder

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
2.0field-weighted citation impact, top 13% 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

8 citing papers in PubMed, 6 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

6 authors at 3 institutions in 1 country.

Nancy M FahimDepartment of Pediatrics, Washington University in St. Louis, St. Louis, Missouri, United States of America.ORCID 0000-0002-5282-6694
Michael K GeorgieffDepartment of Pediatrics, University of Minnesota, Minneapolis, MN, United States of America.
Lei ZhangDivision of Biostatistics, School of Public Health, University of Minnesota, Minneapolis, MN, United States of America.
Scott NaisbittIndependent Researcher, Minneapolis, MN, United States of America.
Raghavendra B RaoDepartment of Pediatrics, University of Minnesota, Minneapolis, MN, United States of America.
Terrie E InderDepartments of Pediatrics, Neurology and Radiology, Washington University in St. Louis, St. Louis, Missouri, United States of America.
University of Minnesota · USWashington University in St. Louis · USMidwest Orthopaedic Research Foundation · US

Funding

University of Minnesota Clinical and Translational Science Institute (UMN CTSI)UL1TR002494 · NCATS · UNIVERSITY OF MINNESOTA · PI BLAZAR, BRUCE R, WEISDORF, DANIEL J · 2018 to 2022
$34.9M
UNDERSTANDING NEUROBEHAVIORAL DEFICITS IN PRETERM INFANTS THROUGH IMAGINGR01HD057098 · NICHD · WASHINGTON UNIVERSITY · PI INDER, TERRIE E, NEIL, JEFFREY J. · 2008 to 2012
$2.9M
NCATS NIH HHS UL1 TR002494NICHD NIH HHS R01 HD057098
6 · The paper itself

Abstract

backgroundEndogenous erythropoietin (EPO) concentrations vary widely in preterm infants and may be associated with perinatal risk factors and neurological outcomes. Erythropoietin is elevated in fetal hypoxia but is also a potential neuroprotectant.

methodsIn a prospective study of 27 infants ≤ 30 weeks gestation, serum erythropoietin concentrations were measured during the first month of life, on day 1 and weeks 1, 2, and 4, and related to perinatal risk factors and outcomes including retinopathy of prematurity and cerebral injury evaluated near term-equivalent post menstrual age using magnetic resonance imaging with quantitative scoring.

resultsLower birth weight was associated with higher EPO concentrations throughout the first 2 weeks of life (r = -0.6, p < 0.01). Higher day 1 and week 1 EPO concentrations were associated with lower Apgar score at 1 minute (r = - 0.5) and 5 minutes (r = -0.7), respectively (p < 0.01). Higher day 1 EPO concentrations and 2-week area under the curve were associated with increased risk (p = 0.01) and severity (r = 0.5, p < 0.02) of retinopathy of prematurity. Higher EPO concentrations at 2 weeks were associated with increased total brain injury score (r = 0.5, p < 0.05).

conclusionElevated endogenous erythropoietin concentrations in the first two weeks of life are associated with lower birth weight and increased risk of adverse outcomes.

Indexed as

Age FactorsApgar ScoreBrain InjuriesErythropoietinFemaleHumansInfant, Low Birth WeightInfant, NewbornInfant, Newborn, DiseasesInfant, PrematureInfant, Premature, DiseasesMalePregnancyProspective StudiesRetinopathy of PrematurityEPO protein, humanErythropoietin

Identifiers

PMID34077474
PMCPMC8171927
OpenAlexW3165836935

What OpenQuestion holds

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Registered trials

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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.