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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
2007-3-26
pubmed:abstractText
Despite the well-known pro-coagulant effect of hyperhomocysteinemia, data is limited regarding the result on recurrent coronary event (RCE) in young people. One hundred and forty patients <55 years old with a first acute coronary syndrome (ACS) were prospectively followed for a mean (+/-S.D.) follow-up of 49+/-14 months in order to investigate the relationship between homocysteine levels (tHcy) at admission and the incidence of RCE. The tHcy values were divided into quartiles to examine their relationship with end points. Furthermore, we determined the effect of C677T methylene tetrahydrofolate reductase (MTHFR) polymorphism, as well as other risk factors for developing a RCE. The median plasma homocysteine concentration was 9.6 mumol/L (interquartile range, 3.7). In the screening of MTHFR C677T polymorphism in patients with ACS, the T allele frequency was 0.4 and the genotype frequency distributions were in Hardy-Weinberg equilibrium. At time of final evaluation, 49 (35%) of the 140 valuable patients had developed a RCE. Increasing numbers of RCE were observed for increasing quartiles of tHcy according to Kaplan-Meier survival (Log-rank test=0.0092). The MTHFR C677T polymorphism was not associated with an increased incidence of RCE. In multivariate analysis, the variables independently associated with a higher risk of RCE were age older than 45 years [HR=2.7; (95% CI, 1.3-6.1); p=0.030], body mass index more than 25 [HR=2.6; (95% CI, 1.1-5.9); p=0.034] and tHcy levels into quartile 4 (tHcy>12.37 mumol/L) [HR=2.5; (95% CI, 1.1-4.7); p=0.04]. Elevated plasma homocysteine level at admission is an independent risk factor for RCE after the first episode of ACS in young patients irrespective of the status of MTHFR C677T.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0049-3848
pubmed:author
pubmed:issnType
Print
pubmed:volume
119
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
691-8
pubmed:dateRevised
2010-11-18
pubmed:meshHeading
pubmed-meshheading:17005242-Acute Disease, pubmed-meshheading:17005242-Adult, pubmed-meshheading:17005242-Age Factors, pubmed-meshheading:17005242-Body Mass Index, pubmed-meshheading:17005242-Cohort Studies, pubmed-meshheading:17005242-Coronary Disease, pubmed-meshheading:17005242-Cytosine, pubmed-meshheading:17005242-Female, pubmed-meshheading:17005242-Gene Frequency, pubmed-meshheading:17005242-Heterozygote, pubmed-meshheading:17005242-Homozygote, pubmed-meshheading:17005242-Humans, pubmed-meshheading:17005242-Hyperhomocysteinemia, pubmed-meshheading:17005242-Kaplan-Meier Estimate, pubmed-meshheading:17005242-Longitudinal Studies, pubmed-meshheading:17005242-Male, pubmed-meshheading:17005242-Methylenetetrahydrofolate Reductase (NADPH2), pubmed-meshheading:17005242-Middle Aged, pubmed-meshheading:17005242-Myocardial Ischemia, pubmed-meshheading:17005242-Polymorphism, Genetic, pubmed-meshheading:17005242-Predictive Value of Tests, pubmed-meshheading:17005242-Prognosis, pubmed-meshheading:17005242-Prospective Studies, pubmed-meshheading:17005242-Recurrence, pubmed-meshheading:17005242-Risk Factors, pubmed-meshheading:17005242-Syndrome, pubmed-meshheading:17005242-Thymine
pubmed:year
2007
pubmed:articleTitle
Hyperhomocysteinemia is a risk factor of recurrent coronary event in young patients irrespective to the MTHFR C677T polymorphism.
pubmed:affiliation
Department of Hematology, University Hospital of Salamanca, Paseo de San Vicente, 58-182, Salamanca, 37007, Spain. gonzapor@hotmail.com
pubmed:publicationType
Journal Article