Evidence map›Paper›PMID 23430981›Full record

Trial reportCephalalgia : an international journal of headache2013

Haplotype analysis of the folate-related genes MTHFR, MTRR, and MTR and migraine with aura.

Kathryn A Roecklein, Ann I Scher, Albert Smith, Tamara Harris, Gudny Eiriksdottir, Melissa Garcia, Villi Gudnason, Lenore J Launer

Open access · greenAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Cephalalgia : an international journal of headache, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed, 2 pooled it
0.6field-weighted citation impact, top 31% 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

8 citing papers in PubMed, 2 syntheses or guidelines pooled it, 11 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Article
  5. Article
  6. Review
  7. The omics in migraine.The journal of headache and pain · 2013
    Review
  8. 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

8 authors at 4 institutions in 2 countries.

Kathryn A RoeckleinDepartment of Psychology, Center for the Neural Basis of Cognition, University of Pittsburgh, Pittsburgh, PA 15260, USA. kroecklein@gmail.com
Ann I Scher
Albert Smith
Tamara Harris
Gudny Eiriksdottir
Melissa Garcia
Villi Gudnason
Lenore J Launer
National Institute on Aging · USIcelandic Heart Association · ISUniversity of Iceland · ISUniversity of Pittsburgh · US

Funding

Genetic Markers of Brain AgingZIAAG007270 · NIA · NATIONAL INSTITUTE ON AGING · PI LAUNER, LENORE J · 2009 to 2025
$2.7M
Genetic analysis of AGES-Reykjavik Study and the Health ABCZIAAG006000 · NIA · NATIONAL INSTITUTE ON AGING · PI HARRIS, TAMARA · 2009 to 2017
$1.3M
The impact of migraine on the aging brainZIAAG007260 · NIA · NATIONAL INSTITUTE ON AGING · PI LAUNER, LENORE J · 2011 to 2016
$249k
AGES STUDY-THE REYKJAVIK STUDY OF HEALTHY AGING FOR THE NEW MILLENNIUM-26012100N01AG012100 · NIA · ICELANDIC HEART ASSOCIATION · 2002 to 2004
–
NIA NIH HHS N01 AG012100NIA NIH HHS N01-AG-1-2100
6 · The paper itself

Abstract

aimsThe C677T variant in the methylenetetrahydrofolate reductase ( MTHFR ; EC 1.5.1.20) enzyme, a key player in the folate metabolic pathway, has been associated with increased risk of migraine with aura. Other genes encoding molecular components of this pathway include methionine synthase ( MTR ; EC 2.1.1.13) and methionine synthase reductase ( MTRR ; EC 2.1.1.135) among others. We performed a haplotype analysis of migraine risk and MTHFR , MTR , and MTRR .

methodsStudy participants are from a random sub-sample participating in the population-based AGES-Reykjavik Study, including subjects with non-migraine headache ( N = 367), migraine without aura ( N = 85), migraine with aura ( N = 167), and no headache ( N = 1347). Haplotypes spanning each gene were constructed using Haploview. Association testing was performed on single SNP and haplotypes using logistic regression, controlling for demographic and cardiovascular risk factors and correcting for multiple testing.

resultsHaplotype analysis suggested an association between MTRR haplotypes and reduced risk of migraine with aura. All other associations were not significant after correcting for multiple testing.

conclusionsThese results suggest that MTRR variants may protect against migraine with aura in an older population.

Indexed as

5-Methyltetrahydrofolate-Homocysteine S-MethyltransferaseAdultAgedAged, 80 and overFemaleFerredoxin-NADP ReductaseFolic AcidGenetic Association StudiesHaplotypesHumansIcelandMaleMethylenetetrahydrofolate Reductase (NADPH2)Middle AgedMigraine with AuraPolymorphism, Single Nucleotide5-Methyltetrahydrofolate-Homocysteine S-MethyltransferaseFerredoxin-NADP ReductaseFolic Acidmethionine synthase reductaseMethylenetetrahydrofolate Reductase (NADPH2)MTHFR protein, human

Identifiers

PMID23430981
PMCPMC4231882
OpenAlexW2095677943

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.