Evidence map›Paper›PMID 20641098›Full record

ArticleBirth defects research. Part A, Clinical and molecular teratology2010

Caffeine, selected metabolic gene variants, and risk for neural tube defects.

Rebecca J Schmidt, Paul A Romitti, Trudy L Burns, Jeffrey C Murray, Marilyn L Browne, Charlotte M Druschel, Richard S Olney, National Birth Defects Prevention Study

Open access · bronzeAbstract read
In one paragraph

Article in Birth defects research. Part A, Clinical and molecular teratology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
3.5field-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.

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

6 citing papers in PubMed, 34 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. PharmGKB summary: caffeine pathway.Pharmacogenetics and genomics · 2012
    Article
  5. Article
  6. Caffeine intake and risk of neural tube defects.Birth defects research. Part A, Clinical and molecular teratology · 2011
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors at 4 institutions in 1 country.

Rebecca J SchmidtDepartment of Public Health Sciences, University of California, Davis, 95616, USA. rjschmidt@ucdavis.edu
Paul A Romitti
Trudy L Burns
Jeffrey C Murray
Marilyn L Browne
Charlotte M Druschel
Richard S Olney
National Birth Defects Prevention Study
University of Iowa · USNew York State Department of Health · USNational Center on Birth Defects and Developmental Disabilities · USUniversity of California System · US

Funding

Molecular Genetic Epidemiology of Cleft Lip and PalateR37DE008559 · NIDCR · UNIVERSITY OF IOWA · PI MURRAY, JEFFREY C · 2004 to 2013
$6.8M
Iowa Center for Birth Defects Research and Prevention (ICBDRP)U01DD000492 · DD · UNIVERSITY OF IOWA · PI ROMITTI, PAUL A · 2009 to 2013
$3.9M
MOLECULAR GENETIC EPIDEMIOLOGY OF CLEFT LIP AND PALATER01DE008559 · NIDCR · UNIVERSITY OF IOWA · PI MURRAY, JEFFREY C · 1988 to 2003
$1.5M
NCBDD CDC HHS U01 DD000492NCBDD CDC HHS U01/DD000492NIDCR NIH HHS DE08559NIDCR NIH HHS R01 DE008559NIDCR NIH HHS R37 DE008559PHS HHS U50/CCU 713238
6 · The paper itself

Abstract

backgroundInvestigations of maternal caffeine intake and neural tube defects (NTDs) have not considered genetic influences. Caffeine metabolism gene effects were examined in the National Birth Defects Prevention Study.

methodsAverage daily caffeine was summed from self-reported coffee, tea, soda, and chocolate intake for mothers of 768 NTD cases, and 4143 controls delivered from 1997 to 2002. A subset of 306 NTD and 669 control infants and their parents were genotyped for CYP1A2*1F, NAT2 481C>T, and NAT2 590G>A. CYP1A2*1F was classified by fast or slow oxidation status, and NAT2 variants were categorized into rapid or slow acetylation status. Case-control logistic regression analyses, family-based transmission/disequilibrium tests and log-linear analyses, and hybrid log-linear analyses were conducted to produce odds ratios (ORs) or relative risks (RRs) and 95% confidence intervals (CIs) for caffeine intake and maternal and infant gene variants, and to examine interaction effects.

resultsNTDs were independently associated with infant slow NAT2 acetylator status (RR, 2.00; 95% CI, 1.10-3.64) and maternal CYP1A2*1F fast oxidation status (OR, 1.49; 95% CI, 1.10-2.03). Mothers who consumed caffeine, oxidized CYP1A2*1F quickly, and acetylized NAT2 slowly had a nonsignificantly elevated estimated risk for an NTD-affected pregnancy (OR, 3.10; 95% CI, 0.86-11.21). Multiplicative interaction effects were observed between maternal caffeine and infant CYP1A2*1F fast oxidizer status (p(interaction) = 0.03).

conclusionsThe association identified between maternal CYP1A2*1F fast oxidation status and NTDs should be examined further in the context of the other substrates of CYP1A2. Maternal caffeine and its metabolites may be associated with increased risk for NTD-affected pregnancies in genetically susceptible subgroups.

Indexed as

Maternal ExposureAcetylationAdolescentAdultArylamine N-AcetyltransferaseCaffeineCase-Control StudiesCytochrome P-450 CYP1A2FemaleGenotypeHumansInfant, NewbornLogistic ModelsNeural Tube DefectsOdds RatioOxidation-ReductionArylamine N-AcetyltransferaseCaffeineCYP1A2 protein, humanCytochrome P-450 CYP1A2NAT2 protein, human

Identifiers

PMID20641098
PMCPMC2917796
OpenAlexW1995785895

What OpenQuestion holds

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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.