Linked Life Data

9687553

Source:http://linkedlifedata.com/resource/pubmed/id/9687553

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
8
pubmed:dateCreated
1998-9-2
pubmed:abstractText
To determine the effects of daily supplementation of 0.5 mg folic acid on homocysteine and folate concentrations, we investigated 49 women with a history of unexplained recurrent miscarriages. A methionine loading test (including the vitamin concentrations of concern) was used preceding and after 2 mo of folic acid intake. Subsequently, these effects were studied after stratification for C677T 5,10-methylenetetrahydrofolate reductase (MTHFR) polymorphism. Folic acid supplementation (for 2 mo) reduced the median fasting and delta (after-load minus fasting) total plasma homocysteine (tHcy) concentrations 27% (P < 0.001) and 14% (P < 0.05), respectively. Median serum and red cell folate concentrations increased 275 and 70%, respectively (P < 0.01). The homocysteine-lowering effect was most marked in women with the highest tHcy concentrations at baseline. All MTHFR-genotypes (homozygous T/T, n = 8; heterozygous T/C, n = 23; wild type C/C, n = 18) had a different response to the supplementation. After 2 mo, homozygous women showed the greatest decline in median fasting (-41%; P < 0.01) tHcy concentrations, but the lowest absolute increase in serum folate concentration (+26 nmol/L; P < 0.05). In conclusion, 2 mo of daily supplementation of 0. 5 mg folic acid in women with a history of unexplained recurrent miscarriages caused, in general, substantially reduced tHcy concentrations. This effect was most distinct in women with the highest tHcy concentrations at baseline and in women homozygous for the 677 C-->T mutation of the MTHFR-gene.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0022-3166
pubmed:author
pubmed:issnType
Print
pubmed:volume
128
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1336-41
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1998
pubmed:articleTitle
Methylenetetrahydrofolate reductase polymorphism affects the change in homocysteine and folate concentrations resulting from low dose folic acid supplementation in women with unexplained recurrent miscarriages.
pubmed:affiliation
Department of Obstetrics and Gynecology, University Hospital Nijmegen St Radboud, 6500 HB Nijmegen, The Netherlands.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't