Evidence map›Paper›PMID 17035141›Full record

ArticleEnvironmental health perspectives2006

Neural tube defects and folate pathway genes: family-based association tests of gene-gene and gene-environment interactions.

Abee L Boyles, Ashley V Billups, Kristen L Deak, Deborah G Siegel, Lorraine Mehltretter, Susan H Slifer, Alexander G Bassuk, John A Kessler, Michael C Reed, H Frederik Nijhout and 5 more

Open access · diamondAbstract read
In one paragraph

Article in Environmental health perspectives, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 49 papers.

0numbers the graph read from it
0cells of the map it votes in
49citing papers in PubMed
6.6field-weighted citation impact, top 3% 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

49 citing papers in PubMed, 134 citations in OpenAlex.

  1. Genetic impairments in folate enzymes increase dependence on dietary choline for phosphatidylcholine production at the expense of betaine synthesis.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2016
    Trial
  2. Review
  3. Article
  4. Article
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  6. Association of periconceptional folate supplements andZhong nan da xue xue bao. Yi xue ban = Journal of Central South University. Medical sciences · 2022
    Article
  7. Article
  8. Article
  9. Article
  10. Association of neural tube defects with gene polymorphisms in one-carbon metabolic pathway.Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery · 2018
    Article
  11. Should vitamin BAnnals of the New York Academy of Sciences · 2018
    Review
  12. Mutations in folate transporter genes and risk for human myelomeningocele.American journal of medical genetics. Part A · 2017
    Article
  13. Article
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  15. Article
  16. Article
  17. Review
  18. Review
  19. Article
  20. Risk factors of neural tube defects in northern iran.Iranian Red Crescent medical journal · 2014
    Article
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

15 authors at 4 institutions in 1 country.

Abee L BoylesCenter for Human Genetics, Duke University Medical Center, Durham, North Carolina 27710, USA.
Ashley V Billups
Kristen L Deak
Deborah G Siegel
Lorraine Mehltretter
Susan H Slifer
Alexander G Bassuk
John A Kessler
Michael C Reed
H Frederik Nijhout
Timothy M George
David S Enterline
John R Gilbert
Marcy C Speer
NTD Collaborative Group
Center for Human Genetics · USDuke University · USNorthwestern University · USDuke Medical Center · US

Funding

CENTER FOR INVIRONMENATL GENOMICSU19ES011375 · NIEHS · DUKE UNIVERSITY · PI LINNEY, ELWOOD ALBERT · 2001 to 2006
$8.8M
The Hereditary Basis of Neural Tube DefectsR01NS039818 · NINDS · DUKE UNIVERSITY · PI ASHLEY-KOCH, ALLISON E · 1999 to 2008
$6.8M
NEURAL TUBE DEFECTSP01HD039948 · NICHD · DUKE UNIVERSITY · PI MC CLAY, DAVID R · 2001 to 2005
$5.2M
Research Core 3: Environmental Health PolicyP30ES011961 · NIEHS · DUKE UNIVERSITY · PI DI GIULIO, RICHARD · 2004 to 2009
$4.1M
Duke Center for Geospatial Medicine (RMI)P20RR020782 · NCRR · DUKE UNIVERSITY · PI MIRANDA, MARIE LYNN · 2004 to 2006
$1.8M
Modeling Folate, One-Carbon Metabolism &DNA MethylationR01CA105437 · NCI · FRED HUTCHINSON CANCER RESEARCH CENTER · PI ULRICH, CORNELIA M · 2004 to 2007
$914k
NCI NIH HHS CA105437NCI NIH HHS R01 CA105437NCRR NIH HHS P20 RR020782NCRR NIH HHS RR020782NICHD NIH HHS HD39948NICHD NIH HHS P01 HD039948NIEHS NIH HHS ES11375NIEHS NIH HHS ES11961NIEHS NIH HHS P30 ES011961NIEHS NIH HHS U19 ES011375NINDS NIH HHS NS39818NINDS NIH HHS R01 NS039818
6 · The paper itself

Abstract

backgroundFolate metabolism pathway genes have been examined for association with neural tube defects (NTDs) because folic acid supplementation reduces the risk of this debilitating birth defect. Most studies addressed these genes individually, often with different populations providing conflicting results.

objectivesOur study evaluates several folate pathway genes for association with human NTDs, incorporating an environmental cofactor: maternal folate supplementation.

methodsIn 304 Caucasian American NTD families with myelomeningocele or anencephaly, we examined 28 polymorphisms in 11 genes: folate receptor 1, folate receptor 2, solute carrier family 19 member 1, transcobalamin II, methylenetetrahydrofolate dehydrogenase 1, serine hydroxymethyl-transferase 1, 5,10-methylenetetrahydrofolate reductase (MTHFR), 5-methyltetrahydrofolate-homo-cysteine methyltransferase, 5-methyltetrahydrofolate-homocysteine methyltransferase reductase, betaine-homocysteine methyltransferase (BHMT), and cystathionine-beta-synthase.

resultsOnly single nucleotide polymorphisms (SNPs) in BHMT were significantly associated in the overall data set; this significance was strongest when mothers took folate-containing nutritional supplements before conception. The BHMT SNP rs3733890 was more significant when the data were stratified by preferential transmission of the MTHFR rs1801133 thermolabile T allele from parent to offspring. Other SNPs in folate pathway genes were marginally significant in some analyses when stratified by maternal supplementation, MTHFR, or BHMT allele transmission.

conclusionsBHMT rs3733890 is significantly associated in our data set, whereas MTHFR rs1801133 is not a major risk factor. Further investigation of folate and methionine cycle genes will require extensive SNP genotyping and/or resequencing to identify novel variants, inclusion of environmental factors, and investigation of gene-gene interactions in large data sets.

Indexed as

AllelesDietary SupplementsFolic AcidHumansNeural Tube DefectsPolymorphism, Single NucleotideFolic Acid

Identifiers

PMID17035141
PMCPMC1626421
OpenAlexW2028767039

What OpenQuestion holds

Textmetadata
LicenceCC0
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.