Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
2006-5-24
pubmed:abstractText
The risk of neural tube defects (NTDs) is known to have a significant genetic component that could act through either the NTD patient and/or maternal genotype. The success of folic acid supplementation in NTD prevention has focused attention on polymorphisms within folate-related genes. We previously identified the 1958G>A (R653Q) polymorphism of the trifunctional enzyme MTHFD1 (methylenetetrahydrofolate-dehydrogenase, methenyltetrahydrofolate-cyclohydrolase, formyltetrahydrofolate synthetase; often referred to as 'C1 synthase') as a maternal risk for NTDs, but this association remains to be verified in a separate study to rule out a chance finding. To exclude this possibility, we genotyped an independent sample of mothers with a history of an NTD-affected pregnancy derived from the same Irish population. In this sample there was a significant excess of 1958AA homozygote mothers of NTD cases (n=245) compared to controls (n=770). The direction and magnitude of risk (odds ratio 1.49 (1.07-2.09), P=0.019) is consistent with our earlier finding. Sequencing of the MTHFD1 gene revealed that this association is not being driven by another common variant within the coding region. We have established that the MTHFD1 1958G>A polymorphism has a significant role in influencing a mother's risk of having an NTD-affected pregnancy in the Irish population.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
1018-4813
pubmed:author
pubmed:issnType
Print
pubmed:volume
14
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
768-72
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2006
pubmed:articleTitle
Confirmation of the R653Q polymorphism of the trifunctional C1-synthase enzyme as a maternal risk for neural tube defects in the Irish population.
pubmed:affiliation
School of Biochemistry and Immunology, Trinity College Dublin, Dublin, Ireland.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, N.I.H., Intramural