Evidence map›Paper›PMID 25793991›Full record

ArticlePloS one2015

Elevated endogenous erythropoietin concentrations are associated with increased risk of brain damage in extremely preterm neonates.

Steven J Korzeniewski, Elizabeth Allred, J Wells Logan, Raina N Fichorova, Stephen Engelke, Karl C K Kuban, T Michael O'Shea, Nigel Paneth, Mari Holm, Olaf Dammann and 2 more

Registry-linked trialOpen access · goldAbstract read
In one paragraph

Article in PloS one, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02745990 (Recombinant Human Erythropoietin Improve Neurodevelopmental Outcomes in Extremely Preterm Infants), which is not on this map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
2.9field-weighted citation impact, top 9% 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.

NCT02745990 naunknown statusnot on this mapstarted 2016, after this paper: background citation

Recombinant Human Erythropoietin Improve Neurodevelopmental Outcomes in Extremely Preterm Infants

TypeinterventionalSponsorHuiqing SunRan2016 to 2022Enrolled440ConditionsDevelopmental DisabilitiesArmsRecombinant human erythropoietin, Normal saline
3 · Its place in the literature

Who cites it

21 citing papers in PubMed, 36 citations in OpenAlex.

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  13. Observational
  14. The complex aetiology of cerebral palsy.Nature reviews. Neurology · 2018
    Review
  15. Neonatal systemic inflammation and the risk of low scores on measures of reading and mathematics achievement at age 10 years among children born extremely preterm.International journal of developmental neuroscience : the official journal of the International Society for Developmental Neuroscience · 2018
    Article
  16. Circulating biomarkers in extremely preterm infants associated with ultrasound indicators of brain damage.European journal of paediatric neurology : EJPN : official journal of the European Paediatric Neurology Society · 2018
    Observational
  17. Article
  18. Observational
  19. Article
  20. Regeneration in the nervous system with erythropoietin.Frontiers in bioscience (Landmark edition) · 2016
    Review
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

12 authors at 9 institutions in 3 countries.

Steven J KorzeniewskiPerinatology Research Branch, NICHD/NIH/DHHS, Bethesda, Maryland, and Detroit, MI, United States of America; Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, United States of America; Department of Epidemiology & Biostatistics, Michigan State University, East Lansing, MI, United States of America.
Elizabeth AllredNeurology Departments, Boston Children's Hospital, and Harvard Medical School, Boston, MA, United States of America.
J Wells LoganDepartment of Neonatology, Nationwide Children's Hospital, Columbus, OH, United States of America.
Raina N FichorovaDepartments of Obstetrics, Gynecology and Reproductive Biology, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, United States of America.
Stephen EngelkeDepartment of Pediatrics, East Carolina University Brody School of Medicine, Greenville, NC, United States of America.
Karl C K KubanDepartments of Pediatrics, Boston Medical Center and Boston University, Boston, MA, United States of America.
T Michael O'SheaDepartment of Pediatrics, Wake Forest University, Winston-Salem, NC, United States of America.
Nigel PanethDepartment of Epidemiology & Biostatistics, Michigan State University, East Lansing, MI, United States of America; Department of Pediatrics & Human Development, Michigan State University, East Lansing, MI, United States of America.
Mari HolmDepartment of Laboratory Medicine, Children's and Women's Health, Faculty of Medicine, Norwegian University of Science and Technology, Trondheim, Norway; Department of Public Health and Community Medicine, Tufts University School of Medicine, Boston, MA, United States of America.
Olaf DammannDepartment of Public Health and Community Medicine, Tufts University School of Medicine, Boston, MA, United States of America; Neuroepidemiology Unit, Hannover School of Medicine, Hannover, Germany.
Alan LevitonNeurology Departments, Boston Children's Hospital, and Harvard Medical School, Boston, MA, United States of America.
ELGAN study investigators
Harvard University · USBoston Medical Center · USEast Carolina University · USMedizinische Hochschule Hannover · DEMichigan State University · USNationwide Children's Hospital · USTufts University · USWake Forest University · USWayne State University · US

Funding

Neonatal Biomarkers in Extremely Preterm Babies Predict Childhood Brain DisordersU01NS040069 · NINDS · CHILDREN'S HOSPITAL BOSTON · PI KUBAN, KARL · 2001 to 2014
$34.0M
SYNAPTIC MECHANISMS IN HIPPOCAMPAL EPILEPTOGENESISP30HD018655 · NICHD · CHILDREN'S HOSPITAL BOSTON · PI POMEROY, SCOTT LOREN · 1985 to 2015
$26.2M
Circulating Immune Biomarkers and Retinopathy of PrematurityR01EY021820 · NEI · TUFTS UNIVERSITY BOSTON · PI DAMMANN, OLAF · 2013 to 2016
$1.7M
NEI NIH HHS 1-R01-EY021820-01NEI NIH HHS R01 EY021820NICHD NIH HHS 5P30HD018655-28NICHD NIH HHS P30 HD018655NINDS NIH HHS 2R01NS040069-06A2NINDS NIH HHS 5U01NS040069-05NINDS NIH HHS U01 NS040069
6 · The paper itself

Abstract

backgroundWe sought to determine, in very preterm infants, whether elevated perinatal erythropoietin (EPO) concentrations are associated with increased risks of indicators of brain damage, and whether this risk differs by the co-occurrence or absence of intermittent or sustained systemic inflammation (ISSI).

methodsProtein concentrations were measured in blood collected from 786 infants born before the 28th week of gestation. EPO was measured on postnatal day 14, and 25 inflammation-related proteins were measured weekly during the first 2 postnatal weeks. We defined ISSI as a concentration in the top quartile of each of 25 inflammation-related proteins on two separate days a week apart. Hypererythropoietinemia (hyperEPO) was defined as the highest quartile for gestational age on postnatal day 14. Using logistic regression and multinomial logistic regression models, we compared risks of brain damage among neonates with hyperEPO only, ISSI only, and hyperEPO+ISSI, to those who had neither hyperEPO nor ISSI, adjusting for gestational age.

resultsNewborns with hyperEPO, regardless of ISSI, were more than twice as likely as those without to have very low (< 55) Mental (OR 2.3; 95% CI 1.5-3.5) and/or Psychomotor (OR 2.4; 95% CI 1.6-3.7) Development Indices (MDI, PDI), and microcephaly at age two years (OR 2.4; 95%CI 1.5-3.8). Newborns with both hyperEPO and ISSI had significantly increased risks of ventriculomegaly, hemiparetic cerebral palsy, microcephaly, and MDI and PDI < 55 (ORs ranged from 2.2-6.3), but not hypoechoic lesions or other forms of cerebral palsy, relative to newborns with neither hyperEPO nor ISSI.

conclusionhyperEPO, regardless of ISSI, is associated with elevated risks of very low MDI and PDI, and microcephaly, but not with any form of cerebral palsy. Children with both hyperEPO and ISSI are at higher risk than others of very low MDI and PDI, ventriculomegaly, hemiparetic cerebral palsy, and microcephaly.

Indexed as

Brain InjuriesCerebral PalsyConfidence IntervalsErythropoietinGestational AgeHumansInfant, Extremely PrematureInfant, NewbornInflammationLogistic ModelsMicrocephalyOdds RatioPsychomotor PerformanceRisk FactorsErythropoietin

Identifiers

PMID25793991
PMCPMC4368546
OpenAlexW2148952319

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Registered trials

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.