Evidence map›Paper›PMID 25023132›Full record

ArticleBMJ open2014

Postnatal epigenetic modification of glucocorticoid receptor gene in preterm infants: a prospective cohort study.

Masato Kantake, Hiroshi Yoshitake, Hitoshi Ishikawa, Yoshihiko Araki, Toshiaki Shimizu

Open access · goldAbstract read
In one paragraph

Article in BMJ open, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 1 pooled it
3.9field-weighted citation impact, top 6% 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

23 citing papers in PubMed, 1 synthesis or guideline pooled it, 52 citations in OpenAlex.

  1. Pooled it
  2. Early Life Stress, DNA Methylation of NR3C1 and HSD11B2 , and Oral Feeding Skill Development in Preterm Infants : A Pilot Study.Advances in neonatal care : official journal of the National Association of Neonatal Nurses · 2025
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  6. Review
  7. Resilience to stress and social touch.Current opinion in behavioral sciences · 2022
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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

5 authors at 3 institutions in 1 country.

Masato KantakePerinatal Medical Center, Juntendo University Urayasu Hospital, Urayasu, Chiba, Japan.
Hiroshi YoshitakeInstitute for Environmental & Gender-specific Medicine, Juntendo University Graduate School of Medicine, Urayasu, Chiba, Japan.
Hitoshi IshikawaDepartment of Health Information Management, Yamagata Saisei Hospital, Yamagata, Yamagata, Japan.
Yoshihiko ArakiInstitute for Environmental & Gender-specific Medicine, Juntendo University Graduate School of Medicine, Urayasu, Chiba, Japan.
Toshiaki ShimizuDepartment of Pediatrics, Juntendo University Graduate School of Medicine, Bunkyo, Tokyo, Japan.
Juntendo University · JPJuntendo University Urayasu Hospital · JPYamagata City Hospital Saiseikan · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo examine the environmental effects on cytosine methylation of preterm infant's DNA, because early life experiences are considered to influence the physiological and mental health of an individual through epigenetic modification of DNA.

designA prospective cohort study, comparison of epigenetic differences in the glucocorticoid receptor (GR) gene between healthy term and preterm infants.

settingNeonatal Intensive Care Unit in a Japanese University Hospital.

participantsA cohort of 40 (20 term and 20 preterm) infants was recruited on the day of birth, and peripheral blood was obtained from each infant at birth and on postnatal day 4.

main outcome measuresThe methylation rates in the 1-F promoter region of the GR gene using the Mquant method.

resultsThe methylation rate increased significantly between postnatal days 0 and 4 in preterm infants but remained stable in term infants. Thus, the methylation rate was significantly higher in preterm than in term infants at postnatal day 4. Several perinatal parameters were significantly correlated with this change in the methylation rate. Logistic regression analysis revealed that methylation rates at postnatal day 4 predicted the occurrence of later complications that required glucocorticoid administration during the neonatal period. No gene polymorphism was detected within the GR promoter region analysed.

conclusionsAlthough further large-scale studies are needed to detect the environmental factors that explain the difference in epigenetic modification among infants after birth, our data show that the postnatal environment influences epigenetic programming of GR expression through methylation of the GR gene promoter in premature infants, which may result in relative glucocorticoid insufficiency during the postnatal period.

Indexed as

DNA MethylationEpigenesis, GeneticCohort StudiesGene-Environment InteractionHumansInfant, NewbornInfant, PrematureProspective StudiesReceptors, GlucocorticoidReceptors, GlucocorticoidMOLECULAR BIOLOGYNEONATOLOGY

Identifiers

PMID25023132
PMCPMC4120337
OpenAlexW2103218539

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.