Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
2005-4-4
pubmed:abstractText
Substantial evidence suggests that a low folate/high homocysteine phenotype is pathogenic. We analyzed the impact of the thymidylate synthase (TYMS) 3'UTR ins/del polymorphism on folate and homocysteine levels and assessed the relationship between the TYMS 3'UTR ins/del polymorphism and key genetic and lifestyle variables. Among non-smokers only, the TYMS 3'UTR ins/del polymorphism was significantly associated with red blood cell folate (RBC folate; P=0.002) and homocysteine (P=0.03) concentrations. Median RBC folate concentration was much higher for TYMS 3'UTR del/del subjects (434 microg/l) compared with either ins/ins (282 microg/l) or ins/del (298 microg/l) subjects. The median homocysteine concentration for del/del homozygotes was considerably lower compared with either ins/ins homozygotes or ins/del heterozygotes. A possible additive effect for the impact of the TYMS 3'UTR del/del and MTHFR 677CC genotypes on RBC folate concentration was also observed. Our findings suggest that the TYMS 3'UTR del/del genotype is a significant determinant of elevated RBC folate concentration in a non-smoking population of northwestern European adults and that this genotype confers protection against diseases for which a low folate/high homocysteine phenotype appears to be an etiologic component.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0340-6717
pubmed:author
pubmed:issnType
Print
pubmed:volume
116
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
347-53
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
2005
pubmed:articleTitle
A common insertion/deletion polymorphism of the thymidylate synthase (TYMS) gene is a determinant of red blood cell folate and homocysteine concentrations.
pubmed:affiliation
Department of Pharmacology, University of Pennsylvania School of Medicine, 153 Johnson Pavilion, 3620 Hamilton Walk, Philadelphia, PA 19104-6084, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't, Research Support, N.I.H., Extramural