Evidence map›Paper›PMID 27711190›Full record

Trial reportPloS one2016

The Role of Vitamin D in the Transcriptional Program of Human Pregnancy.

Amal Al-Garawi, Vincent J Carey, Divya Chhabra, Hooman Mirzakhani, Jarrett Morrow, Jessica Lasky-Su, Weiliang Qiu, Nancy Laranjo, Augusto A Litonjua, Scott T Weiss

Registry-linked trialOpen access · goldAbstract readRandomized Controlled Trial
In one paragraph

Trial report in PloS one, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT00920621 (Randomized Trial), which is not on this map. Cited by 20 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 3 pooled it
3.1field-weighted citation impact, top 8% 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.

NCT00920621 phase3completednot on this map

Randomized Trial: Maternal Vitamin D Supplementation to Prevent Childhood Asthma (VDAART)

TypeinterventionalSponsorBrigham and Women's HospitalRan2009 to 2023Enrolled876ConditionsAsthmaArmsVitamin D 3 cholecalciferol, Vitamin D3
3 · Its place in the literature

Who cites it

20 citing papers in PubMed, 3 syntheses or guidelines pooled it, 36 citations in OpenAlex.

  1. Vitamin D supplementation for women during pregnancy.The Cochrane database of systematic reviews · 2024
    Pooled it
  2. Vitamin D supplementation for women during pregnancy.The Cochrane database of systematic reviews · 2019
    Pooled it
  3. Pooled it
  4. Trial
  5. Trial
  6. Trial
  7. Review
  8. Article
  9. Review
  10. Article
  11. Article
  12. Review
  13. Article
  14. Regimens of vitamin D supplementation for women during pregnancy.The Cochrane database of systematic reviews · 2019
    Review
  15. Review
  16. Article
  17. Vitamin D and associated perinatal-neonatal outcomes among extremely low-birth-weight infants.Journal of perinatology : official journal of the California Perinatal Association · 2018
    Observational
  18. Review
  19. Review
  20. 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

10 authors at 1 institution in 1 country.

Amal Al-GarawiChanning Division of Network Medicine, Brigham and Women's Hospital, Boston, Massachusetts, United States of America.
Vincent J CareyChanning Division of Network Medicine, Brigham and Women's Hospital, Boston, Massachusetts, United States of America.
Divya ChhabraChanning Division of Network Medicine, Brigham and Women's Hospital, Boston, Massachusetts, United States of America.
Hooman MirzakhaniChanning Division of Network Medicine, Brigham and Women's Hospital, Boston, Massachusetts, United States of America.ORCID http://orcid.org/0000-0002-2290-4436
Jarrett MorrowChanning Division of Network Medicine, Brigham and Women's Hospital, Boston, Massachusetts, United States of America.
Jessica Lasky-SuChanning Division of Network Medicine, Brigham and Women's Hospital, Boston, Massachusetts, United States of America.
Weiliang QiuChanning Division of Network Medicine, Brigham and Women's Hospital, Boston, Massachusetts, United States of America.
Nancy LaranjoChanning Division of Network Medicine, Brigham and Women's Hospital, Boston, Massachusetts, United States of America.
Augusto A LitonjuaChanning Division of Network Medicine, Brigham and Women's Hospital, Boston, Massachusetts, United States of America.
Scott T WeissChanning Division of Network Medicine, Brigham and Women's Hospital, Boston, Massachusetts, United States of America.
Brigham and Women's Hospital · US

Funding

SYSTEMS APPROACHES TO THE EPIDEMIOLOGY, GENETICS AND GENOMICS OF LUNG DISEASEST32HL007427 · NHLBI · HARVARD UNIVERSITY (MEDICAL SCHOOL) · PI DAWN L DEMEO, Edwin K Silverman · 1985 to 2026
$13.6M
Randomized Trial: Maternal Vitamin D Supplementation to Prevent Childhood AsthmaU01HL091528 · NHLBI · BRIGHAM AND WOMEN'S HOSPITAL · PI LITONJUA, AUGUSTO A, WEISS, SCOTT T · 2009 to 2013
$10.0M
RANDOMIZED CONTROLLED TRIAL: VDAART CONTINUATION STUDY - DCC - LEADR01HL091528 · NHLBI · BRIGHAM AND WOMEN'S HOSPITAL · PI LITONJUA, AUGUSTO A, WEISS, SCOTT T · 2014 to 2018
$9.1M
Boston University Clinical and Translational Science Institute - U ProgramU54TR001012 · NCATS · BOSTON UNIVERSITY MEDICAL CAMPUS · PI CENTER, DAVID M. · 2014 to 2014
$3.9M
Randomized Controlled Trial: VDAART Continuation Study - CCCR01HL091075 · NHLBI · WASHINGTON UNIVERSITY · PI BACHARIER, LEONARD B · 2014 to 2018
$2.1M
NCATS NIH HHS U54 TR001012NHLBI NIH HHS R01 HL091075NHLBI NIH HHS R01 HL091528NHLBI NIH HHS T32 HL007427NHLBI NIH HHS U01 HL091528
6 · The paper itself

Abstract

backgroundPatterns of gene expression of human pregnancy are poorly understood. In a trial of vitamin D supplementation in pregnant women, peripheral blood transcriptomes were measured longitudinally on 30 women and used to characterize gene co-expression networks.

objectiveStudies suggest that increased maternal Vitamin D levels may reduce the risk of asthma in early life, yet the underlying mechanisms have not been examined. In this study, we used a network-based approach to examine changes in gene expression profiles during the course of normal pregnancy and evaluated their association with maternal Vitamin D levels.

designThe VDAART study is a randomized clinical trial of vitamin D supplementation in pregnancy for reduction of pediatric asthma risk. The trial enrolled 881 women at 10-18 weeks of gestation. Longitudinal gene expression measures were obtained on thirty pregnant women, using RNA isolated from peripheral blood samples obtained in the first and third trimesters. Differentially expressed genes were identified using significance of analysis of microarrays (SAM), and clustered using a weighted gene co-expression network analysis (WGCNA). Gene-set enrichment was performed to identify major biological pathways.

resultsComparison of transcriptional profiles between first and third trimesters of pregnancy identified 5839 significantly differentially expressed genes (FDR<0.05). Weighted gene co-expression network analysis clustered these transcripts into 14 co-expression modules of which two showed significant correlation with maternal vitamin D levels. Pathway analysis of these two modules revealed genes enriched in immune defense pathways and extracellular matrix reorganization as well as genes enriched in notch signaling and transcription factor networks.

conclusionOur data show that gene expression profiles of healthy pregnant women change during the course of pregnancy and suggest that maternal Vitamin D levels influence transcriptional profiles. These alterations of the maternal transcriptome may contribute to fetal immune imprinting and reduce allergic sensitization in early life.

trial registrationclinicaltrials.gov NCT00920621.

Indexed as

AdultFemaleFetal DevelopmentGene Regulatory NetworksHumansPregnancyTranscription, GeneticTranscriptomeVitamin DYoung AdultVitamin D

Identifiers

PMID27711190
PMCPMC5053446
OpenAlexW2528433773

What OpenQuestion holds

Textmetadata
LicenceCC BY
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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.