Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2001-4-17
pubmed:abstractText
In this study of 118 children (median age 5.1 years; range 6 months to 17 years) with ischaemic stroke or transient ischaemic attack (TIA), 22 children (19%) were homozygous for the thermolabile variant of the methylenetetrahydrofolate reductase allele (t-MTHFR), compared with nine of 78 (12%) of a reference population (p=0.18, OR 1.76, 95% CI 0.76 to 4.04). Of those with cerebrovascular disease (CVD), 17 of 84 were homozygous for the t-MTHFR allele (p=0.13 compared with the reference population (OR 1.95, 95% CI 0.81 to 4.65). There was a significant (p<0.025) increment of plasma total homocysteine concentration in homozygotes for the t-MTHFR allele compared with heterozygotes, negatives for the t-MTHFR allele, and control children with no history of stroke. In four of 12 homozygotes for the t-MTHFR allele, plasma homocysteine levels were raised, compared with three of 38 of those who were negative or heterozygous (p=0.047; OR 5.8, 95% CI 1.1 to 31.2). Homozygotes for the t-MTHFR allele were significantly more likely to have a recurrent event than those who were negative or heterozygous (Cox regression p=0.031, hazard ratio 2.18, 95% CI 1.08 to 4.42). These data suggest that homozygosity for the t-MTHFR allele is associated with raised homocysteine levels in children and is a risk factor for primary and secondary stroke and TIA.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0012-1622
pubmed:author
pubmed:issnType
Print
pubmed:volume
43
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
220-5
pubmed:dateRevised
2009-11-11
pubmed:meshHeading
pubmed-meshheading:11307798-Adolescent, pubmed-meshheading:11307798-Alleles, pubmed-meshheading:11307798-Cerebrovascular Disorders, pubmed-meshheading:11307798-Child, pubmed-meshheading:11307798-Child, Preschool, pubmed-meshheading:11307798-Female, pubmed-meshheading:11307798-Genetic Predisposition to Disease, pubmed-meshheading:11307798-Homocysteine, pubmed-meshheading:11307798-Homozygote, pubmed-meshheading:11307798-Humans, pubmed-meshheading:11307798-Infant, pubmed-meshheading:11307798-Ischemic Attack, Transient, pubmed-meshheading:11307798-Male, pubmed-meshheading:11307798-Methylenetetrahydrofolate Reductase (NADPH2), pubmed-meshheading:11307798-Oxidoreductases Acting on CH-NH Group Donors, pubmed-meshheading:11307798-Recurrence, pubmed-meshheading:11307798-Risk Factors, pubmed-meshheading:11307798-Stroke, pubmed-meshheading:11307798-Temperature
pubmed:year
2001
pubmed:articleTitle
Homozygous thermolabile variant of the methylenetetrahydrofolate reductase gene: a potential risk factor for hyperhomocysteinaemia, CVD, and stroke in childhood.
pubmed:affiliation
Neurosciences Unit, Institute of Child Health, University College London, UK.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't