Evidence map›Paper›PMID 23485870›Full record

ArticleAmerican journal of physiology. Regulatory, integrative and comparative physiology2013

Population pharmacodynamic analysis of erythropoiesis in preterm infants for determining the anemia treatment potential of erythropoietin.

Mohammad I Saleh, Demet Nalbant, John A Widness, Peter Veng-Pedersen

Open access · greenAbstract read
In one paragraph

Article in American journal of physiology. Regulatory, integrative and comparative physiology, 2013. 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
1.6field-weighted citation impact, top 18% 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, 16 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Observational
  5. Reference intervals for reticulocyte parameters of infants during their first 90 days after birth.Journal of perinatology : official journal of the California Perinatal Association · 2016
    Article
  6. Article
  7. Article
  8. Why do four NICUs using identical RBC transfusion guidelines have different gestational age-adjusted RBC transfusion rates?Journal of perinatology : official journal of the California Perinatal Association · 2015
    Article
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

4 authors at 1 institution in 1 country.

Mohammad I SalehDivision of Pharmaceutics, College of Pharmacy, The University of Iowa, Iowa City, IA 52212, USA.
Demet Nalbant
John A Widness
Peter Veng-Pedersen
University of Iowa · US

Funding

THE RoLE OF NEONATAL ANEMIA IN LEARNING AND MEMORYP01HL046925 · NHLBI · UNIVERSITY OF IOWA · PI JOSEPHSON, CASSANDRA D · 1992 to 2022
$34.3M
UNIVERSITY OF IOWA CTSA FOR PEDIATRIC RESEARCHUL1RR024979 · NCRR · UNIVERSITY OF IOWA · PI ROSENTHAL, GARY E · 2007 to 2011
$31.8M
NCRR NIH HHS UL1 RR024979NHLBI NIH HHS 2 P01HL046925NHLBI NIH HHS P01 HL046925
6 · The paper itself

Abstract

A population pharmacokinetics/pharmacodynamic (PK/PD) model was developed to describe changes in erythropoiesis as a function of plasma erythropoietin (EPO) concentration over the first 30 days of life in preterm infants who developed severe anemia requiring red blood cell (RBC) transfusion. Several covariates were tested as possible factors influencing the responsiveness to EPO. Discarded blood samples in 27 ventilated preterm infants born at 24-29 wk of gestation were used to construct plasma EPO, hemoglobin (Hb), and RBC concentration-time profiles. The amount of Hb removed for laboratory testing and that transfused throughout the study period were recorded. A population PK/PD model accounting for the dynamic Hb changes experienced by these infants was simultaneously fitted to plasma EPO, Hb, and RBC concentrations. A covariate analysis suggested that the erythropoietic efficacy of EPO is increased for preterm infants at later gestational ages. The PD analysis showed a sevenfold difference in maximum Hb production rate dependent on gestational age and indicated that preterm infants, when stimulated by EPO, have the capacity to produce additional Hb that may result in a decrease in RBC transfusions. The present model has utility in clinical trial simulations investigating the treatment potential of erythropoietic stimulating agents in the treatment of anemia of prematurity.

Indexed as

AdultAlgorithmsAnemiaBlood VolumeData Interpretation, StatisticalEpoetin AlfaErythrocyte AgingErythropoiesisErythropoietinFemaleGestational AgeHemoglobinsHumansInfant, NewbornInfant, PrematureModels, StatisticalEpoetin AlfaErythropoietinHemoglobinsPlasma SubstitutesRecombinant Proteinserythropoiesisgestational agepharmacodynamicspreterm infants

Identifiers

PMID23485870
PMCPMC3652082
OpenAlexW1984836340

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.