Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2003-6-17
pubmed:abstractText
The folate receptor beta (FRbeta) gene encodes a receptor that binds and transports 5-methyltetrahydrofolate. FRbeta polymorphisms may potentially alter folate delivery and are likely candidates for an association with neural tube defect (NTD) risk. To look for association between FRbeta polymorphisms we studied NTD-affected children and their parents (254 triads) recruited throughout Ireland and a control population of 296 pregnant women who did not give birth to an NTD-affected child. Five potential single nucleotide polymorphisms (SNPs) were examined. These were located within the coding, intronic and 3(')-untranslated regions of the FRbeta gene. Four of these SNPs were not found to be variable within our Irish cohort. SNP rs651646 (A-->T), located upstream of exon 2 within an intronic region, is polymorphic and is thus a marker for an FRbeta NTD association study. The frequency of the SNP rs651646 "A" allele was not significantly different in cases (odds ratio [OR] 1.07, 95% CI. 0.84-1.36; P=0.60), their mothers (odds ratio [OR] 1.09, 95% CI. 0.86-1.38; P=0.51) or fathers (odds ratio [OR] 1.09, 95% CI. 0.86-1.38; P=0.50) when compared to controls. Comparisons of allele transmission from 255 informative heterozygous parents of NTD cases showed no preferential transmission of either the A or T alleles (A: 50.2%, n=128; T: 49.8%, n=127; P=1.00, McNemar chi(2) 0.0). We also measured allele frequencies in a sample of American-Caucasians and African-Americans. Highly significant allele frequency differences were observed between populations. In conclusion, SNP rs651646 within the FRbeta gene is polymorphic but is not associated with neural tube defects within the Irish population.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
1096-7192
pubmed:author
pubmed:issnType
Print
pubmed:volume
79
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
129-33
pubmed:dateRevised
2010-11-18
pubmed:meshHeading
pubmed-meshheading:12809644-3' Untranslated Regions, pubmed-meshheading:12809644-African Americans, pubmed-meshheading:12809644-African Continental Ancestry Group, pubmed-meshheading:12809644-Carrier Proteins, pubmed-meshheading:12809644-Child, pubmed-meshheading:12809644-European Continental Ancestry Group, pubmed-meshheading:12809644-Female, pubmed-meshheading:12809644-Folate Receptors, GPI-Anchored, pubmed-meshheading:12809644-Gene Frequency, pubmed-meshheading:12809644-Genetic Predisposition to Disease, pubmed-meshheading:12809644-Humans, pubmed-meshheading:12809644-Introns, pubmed-meshheading:12809644-Ireland, pubmed-meshheading:12809644-Male, pubmed-meshheading:12809644-Neural Tube Defects, pubmed-meshheading:12809644-Polymorphism, Single Nucleotide, pubmed-meshheading:12809644-Pregnancy, pubmed-meshheading:12809644-Receptors, Cell Surface
pubmed:year
2003
pubmed:articleTitle
Analysis of the human folate receptor beta gene for an association with neural tube defects.
pubmed:affiliation
Department of Biochemistry, Trinity College Dublin, Dublin, Ireland. olearyv@tcd.ie
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't