Source:http://linkedlifedata.com/resource/pubmed/id/17024475
Switch to
Predicate | Object |
---|---|
rdf:type | |
lifeskim:mentions | |
pubmed:issue |
12
|
pubmed:dateCreated |
2006-11-30
|
pubmed:abstractText |
The methionine synthase reductase (MTRR) enzyme restores methionine synthase (MTR) enzyme activity and therefore plays an essential role in homocysteine remethylation. In some studies, the 66A>G polymorphism in the MTRR gene was associated with increased neural tube defect (NTD) risk. Using a case-control design, we studied the association between the MTRR 66A>G polymorphism and spina bifida risk in 121 mothers, 109 spina bifida patients, 292 control women, and 234 pediatric controls. Possible interactions between the MTRR 66A>G variant and the MTR 2756A>G polymorphism, the MTHFR 677C>T variant, plasma vitamin B12, and plasma methylmalonic acid (MMA) levels were examined in the 121 mothers and 292 control women. Meta-analyses were conducted to set the results of the case-control study in the context of eligible literature on the relation between the MTRR 66A>G variant and NTD risk. Finally, a transmission disequilibrium test was performed for 82 complete mother-father-child triads to test for preferential transmission of the MTRR risk allele. In our case-control study, the MTRR 66A>G polymorphism had no influence on spina bifida risk in children [odds ratio (OR) 0.6, 95% confidence interval (CI) 0.4-1.1]. The MTRR 66GG genotype increased maternal spina bifida risk by 2.1-fold (OR 2.1, 95% CI 1.3-3.3). This risk became more pronounced in combination with the MTHFR 677TT genotype (OR 4.0, 95% CI 1.3-12.5). Moreover, we demonstrate a possible interaction between the MTRR 66GG genotype and high plasma MMA levels (OR 5.5, 95% CI 2.2-13.5). The meta-analyses demonstrated that the maternal MTRR 66GG genotype was associated with an overall 55% (95% CI 1.04-2.30) increase in NTD risk and that the MTRR 66GG genotype did not increase NTD risk in children (OR 0.96, 95% CI 0.46-2.01). These data show that the MTRR 66GG genotype is a maternal risk factor for spina bifida especially when intracellular vitamin B12 status is low.
|
pubmed:language |
eng
|
pubmed:journal | |
pubmed:citationSubset |
IM
|
pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Ferredoxin-NADP Reductase,
http://linkedlifedata.com/resource/pubmed/chemical/Methylenetetrahydrofolate...,
http://linkedlifedata.com/resource/pubmed/chemical/Methylmalonic Acid,
http://linkedlifedata.com/resource/pubmed/chemical/methionine synthase reductase
|
pubmed:status |
MEDLINE
|
pubmed:month |
Dec
|
pubmed:issn |
0946-2716
|
pubmed:author | |
pubmed:issnType |
Print
|
pubmed:volume |
84
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
1047-54
|
pubmed:dateRevised |
2011-7-8
|
pubmed:meshHeading |
pubmed-meshheading:17024475-Adolescent,
pubmed-meshheading:17024475-Adult,
pubmed-meshheading:17024475-Aged,
pubmed-meshheading:17024475-Alleles,
pubmed-meshheading:17024475-Case-Control Studies,
pubmed-meshheading:17024475-Child,
pubmed-meshheading:17024475-Child, Preschool,
pubmed-meshheading:17024475-Confidence Intervals,
pubmed-meshheading:17024475-Female,
pubmed-meshheading:17024475-Ferredoxin-NADP Reductase,
pubmed-meshheading:17024475-Humans,
pubmed-meshheading:17024475-Male,
pubmed-meshheading:17024475-Methylenetetrahydrofolate Reductase (NADPH2),
pubmed-meshheading:17024475-Methylmalonic Acid,
pubmed-meshheading:17024475-Middle Aged,
pubmed-meshheading:17024475-Mothers,
pubmed-meshheading:17024475-Odds Ratio,
pubmed-meshheading:17024475-Polymorphism, Genetic,
pubmed-meshheading:17024475-Risk Factors,
pubmed-meshheading:17024475-Spinal Dysraphism
|
pubmed:year |
2006
|
pubmed:articleTitle |
The methionine synthase reductase 66A>G polymorphism is a maternal risk factor for spina bifida.
|
pubmed:affiliation |
Laboratory of Pediatrics and Neurology (830), Radboud University Nijmegen Medical Center, Nijmegen, The Netherlands.
|
pubmed:publicationType |
Journal Article,
Comparative Study,
Research Support, Non-U.S. Gov't,
Meta-Analysis
|