Evidence map›Paper›PMID 26382625›Full record

ArticleThe Journal of pediatrics2015

Impact of Fetal-Neonatal Iron Deficiency on Recognition Memory at 2 Months of Age.

Fengji Geng, Xiaoqin Mai, Jianying Zhan, Lin Xu, Zhengyan Zhao, Michael Georgieff, Jie Shao, Betsy Lozoff

Open access · greenAbstract read
In one paragraph

Article in The Journal of pediatrics, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 60 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
60citing papers in PubMed, 4 pooled it
11.5field-weighted citation impact, top 2% 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

60 citing papers in PubMed, 4 syntheses or guidelines pooled it, 118 citations in OpenAlex.

  1. Pooled it
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  3. The Prevalence of Nutritional Anaemia in Brazilian Pregnant Women: A Systematic Review and Meta-Analysis.International journal of environmental research and public health · 2023
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  20. Identifying and treating iron deficiency anemia in pregnancy.Hematology. American Society of Hematology. Education Program · 2023
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors at 5 institutions in 2 countries.

Fengji GengDepartment of Psychology, University of Maryland, College Park, MD.
Xiaoqin MaiDepartment of Psychology, Renmin University of China, Beijing, China.
Jianying ZhanDepartment of Child Health Care, Children's Hospital Zhejiang University School of Medicine, Hangzhou, China.
Lin XuDepartment of Child Health Care, Children's Hospital Zhejiang University School of Medicine, Hangzhou, China.
Zhengyan ZhaoDepartment of Child Health Care, Children's Hospital Zhejiang University School of Medicine, Hangzhou, China.
Michael GeorgieffDepartment of Pediatrics, University of Minnesota, Minneapolis, MN.
Jie ShaoDepartment of Child Health Care, Children's Hospital Zhejiang University School of Medicine, Hangzhou, China. Electronic address: shaojie@zju.edu.cn.
Betsy LozoffCenter for Human Growth and Development, University of Michigan, Ann Arbor, MI; Department of Pediatrics and Communicable Diseases, University of Michigan, Ann Arbor, MI.
Children's Hospital of Zhejiang University · CNRenmin University of China · CNUniversity of Maryland, College Park · USUniversity of Michigan–Ann Arbor · USUniversity of Minnesota · US

Funding

CTSA INFRASTRUCTURE FOR PEDIATRIC RESEARCHUL1RR026314 · NCRR · UNIVERSITY OF CINCINNATI · PI HEUBI, JAMES E. · 2009 to 2011
$14.3M
STATISTICAL COREP01HD039386 · NICHD · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI LOZOFF, BETSY · 2001 to 2011
$14.0M
Environmental exposures, early iron deficiency and child neurological developmentR01ES021465 · NIEHS · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI LOZOFF, BETSY, MEEKER, JOHN D. · 2012 to 2016
$3.0M
NCRR NIH HHS RR026314NICHD NIH HHS P01 HD039386NIEHS NIH HHS R01 ES021465
6 · The paper itself

Abstract

objectiveTo assess the effects of fetal-neonatal iron deficiency on recognition memory in early infancy. Perinatal iron deficiency delays or disrupts hippocampal development in animal models and thus may impair related neural functions in human infants, such as recognition memory. STUDY

designEvent-related potentials were used in an auditory recognition memory task to compare 2-month-old Chinese infants with iron sufficiency or deficiency at birth. Fetal-neonatal iron deficiency was defined 2 ways: high zinc protoporphyrin/heme ratio (ZPP/H > 118 μmol/mol) or low serum ferritin (<75 μg/L) in cord blood. Late slow wave was used to measure infant recognition of mother's voice.

resultsEvent related potentials patterns differed significantly for fetal-neonatal iron deficiency as defined by high cord ZPP/H but not low ferritin. Comparing 35 infants with iron deficiency (ZPP/H > 118 μmol/mol) to 92 with lower ZPP/H (iron-sufficient), only infants with iron sufficiency showed larger late slow wave amplitude for stranger's voice than mother's voice in frontal-central and parietal-occipital locations, indicating the recognition of mother's voice.

conclusionsInfants with iron sufficiency showed electrophysiological evidence of recognizing their mother's voice, whereas infants with fetal-neonatal iron deficiency did not. Their poorer auditory recognition memory at 2 months of age is consistent with effects of fetal-neonatal iron deficiency on the developing hippocampus.

Indexed as

Iron DeficienciesAsian PeopleEvoked PotentialsFemaleFerritinsFetusHumansInfantInfant, NewbornIronIron Metabolism DisordersMaleMemoryMemory DisordersPregnancyProtoporphyrinsFerritinsIronProtoporphyrinszinc protoporphyrin

Identifiers

PMID26382625
PMCPMC4662910
OpenAlexW2184523659

What OpenQuestion holds

Textmetadata
LicenceTDM
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.