Evidence map›Paper›PMID 31252026›Full record

ArticleThe journal of allergy and clinical immunology. In practice2020

Association Between Folate Metabolites and the Development of Food Allergy in Children.

Emily C McGowan, Xiumei Hong, Jacob Selhub, Ligi Paul, Robert A Wood, Elizabeth C Matsui, Corinne A Keet, Xiaobin Wang

Open access · greenAbstract read
In one paragraph

Article in The journal of allergy and clinical immunology. In practice, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed, 1 pooled it
4.6field-weighted citation impact, top 5% 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

26 citing papers in PubMed, 1 synthesis or guideline pooled it, 44 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Trial
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  5. Serum folate metabolites, asthma, and lung function in a nationwide US study.The Journal of allergy and clinical immunology · 2020
    Trial
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  14. Maternal risk factors vary between subpopulations of children with autism spectrum disorder.Autism research : official journal of the International Society for Autism Research · 2022
    Article
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  16. Article
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  19. Fetal lipidome and incident risk of food allergy: A prospective birth cohort study.Pediatric allergy and immunology : official publication of the European Society of Pediatric Allergy and Immunology · 2022
    Article
  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

8 authors at 3 institutions in 1 country.

Emily C McGowanDivision of Allergy and Immunology, University of Virginia School of Medicine, Charlottesville, Va; Division of Allergy and Clinical Immunology, Johns Hopkins University School of Medicine, Baltimore, Md. Electronic address: ekc5v@virginia.edu.
Xiumei HongDepartment of Population, Family, and Reproductive Health, Center on the Early Life Origins of Disease, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Md.
Jacob SelhubTufts University, JM USDA HNRCA at Tufts University, Boston, Mass.
Ligi PaulTufts University, JM USDA HNRCA at Tufts University, Boston, Mass.
Robert A WoodDivision of Pediatric Allergy and Immunology, Johns Hopkins University School of Medicine, Baltimore, Md.
Elizabeth C MatsuiDivision of Pediatric Allergy and Immunology, Johns Hopkins University School of Medicine, Baltimore, Md.
Corinne A KeetDivision of Pediatric Allergy and Immunology, Johns Hopkins University School of Medicine, Baltimore, Md.
Xiaobin WangDepartment of Population, Family, and Reproductive Health, Center on the Early Life Origins of Disease, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Md.
Johns Hopkins University · USJohns Hopkins Medicine · USTufts University · US

Funding

QAQC Johns Hopkins Institute for Clinical and Translational ResearchUL1TR003098 · NCATS · JOHNS HOPKINS UNIVERSITY · PI FORD, DANIEL ERNEST · 2019 to 2023
$57.7M
Institute for Clinical and Translational ResearchKL2TR001077 · NCATS · JOHNS HOPKINS UNIVERSITY · PI FORD, DANIEL ERNEST · 2013 to 2017
$9.2M
The effect of a housing mobility program on environmental exposures and asthma morbidity among low-income minority childrenR01ES026170 · NIEHS · JOHNS HOPKINS UNIVERSITY · PI KEET, CORINNE, MATSUI, ELIZABETH C. · 2016 to 2025
$6.8M
Scientific & Technical CoreP2CHD042849 · NICHD · UNIVERSITY OF TEXAS AT AUSTIN · PI Catherine A Calder · 2017 to 2026
$5.2M
Early Peanut Introduction: Translation to Clinical PracticeU01AI125290 · NIAID · JOHNS HOPKINS UNIVERSITY · PI KEET, CORINNE, WOOD, ROBERT A · 2016 to 2020
$4.3M
Environmental Control as Add-on Therapy in Urban Children with AsthmaR01ES023447 · NIEHS · JOHNS HOPKINS UNIVERSITY · PI MATSUI, ELIZABETH C. · 2014 to 2018
$3.4M
Early Life Determinants of Obesity in U.S. Urban Low Income Minority Birth CohortR01HD086013 · NICHD · JOHNS HOPKINS UNIVERSITY · PI LEE, BRUCE Y, WANG, XIAOBIN · 2016 to 2020
$3.3M
Post Genome-Wide Association Study of Food AllergyU01AI090727 · NIAID · LURIE CHILDREN'S HOSPITAL OF CHICAGO · PI WANG, XIAOBIN · 2010 to 2014
$2.3M
Mentoring in Patient-Oriented Research on Asthma and the Indoor EnvironmentK24AI114769 · NIAID · UNIVERSITY OF TEXAS AT AUSTIN · PI MATSUI, ELIZABETH C. · 2015 to 2023
$1.6M
Dietary Methyl Donors and Food Allergy Risk in the United StatesK23AI123596 · NIAID · UNIVERSITY OF VIRGINIA · PI MCGOWAN, EMILY CLARKE · 2017 to 2020
$767k
Epigenome Association Study of Food AllergyR21AI088609 · NIAID · LURIE CHILDREN'S HOSPITAL OF CHICAGO · PI WANG, XIAOBIN · 2010 to 2011
$409k
NCATS NIH HHS KL2 TR001077NCATS NIH HHS UL1 TR003098NIAID NIH HHS K23 AI123596NIAID NIH HHS K24 AI114769NIAID NIH HHS R21 AI088609NIAID NIH HHS U01 AI090727NIAID NIH HHS U01 AI125290NICHD NIH HHS P2C HD042849NICHD NIH HHS R01 HD086013NIEHS NIH HHS R01 ES023447NIEHS NIH HHS R01 ES026170
6 · The paper itself

Abstract

backgroundStudies on the association between folate/folic acid exposure and the development of allergic disease have yielded inconsistent results, which may be due, in part, to lack of data distinguishing folate from folic acid exposure.

objectiveTo examine the association between total folate, 5-methyltetrahydrofolate (5-MTHF), and unmetabolized folic acid (UMFA) concentrations at birth and in early childhood and the development of food sensitization (FS) and food allergy (FA).

methodsA nested case control study was performed in the Boston Birth Cohort (BBC). Total folate, 5-MTHF, and UMFA were measured at birth and in early childhood. Based on food-specific IgE (sIgE) levels, diet, and clinical history, children were classified as FS (sIgE ≥0.35 kU/L), FA, or non-FS/FA (controls). Folate concentrations were divided into quartiles, and multiple logistic regression was used to estimate odds ratios (ORs) and 95% confidence intervals (CIs).

resultsOf a total of 1394 children, 507 children with FS and 78 with FA were identified. Although mean total folate concentrations at birth were lower among those who developed FA (30.2 vs 35.3 nmol/L; P = .02), mean concentrations of the synthetic folic acid derivative, UMFA, were higher (1.7 vs 1.3 nmol/L, P = .001). Higher quartiles of UMFA at birth were associated more strongly with FA (OR 8.50; 95% CI 1.7-42.8; test for trend P = .001). Neither early childhood concentrations of 5-MTHF nor UMFA were associated with the development of FS or FA.

conclusionAmong children in the BBC, higher concentrations of UMFA at birth were associated with the development of FA, which may be due to increased exposure to synthetic folic acid in utero or underlying genetic differences in synthetic folic acid metabolism.

Indexed as

Folic AcidFood HypersensitivityBostonCase-Control StudiesChildChild, PreschoolDietHumansInfant, NewbornFolic Acid5-MethyltetrahydrofolateFolateFolic acidFood allergyUnmetabolized folic acid

Identifiers

PMID31252026
PMCPMC6930362
OpenAlexW2955100073

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.