title: Two models of homocysteine behavior in acute myocardial infarction.
abstract: OBJECTIVE
  To study homocysteine (Hcy) levels during post-infarction follow-up.
  
  
  RESULTS
  In this study, serum Hcy levels were measured in 90 healthy individuals and in 127 patients with acute myocardial infarction (MI) on the day of infarction (day 0) and days 2, 5, 7, 9, and 11 post-infarction, comparing Hcy levels in MI patients on day 0 with their follow-up results and with levels in controls. Overall, MI patients had higher Hcy levels on day 0 versus controls. However, the behavior of Hcy levels differed between two groups of MI patients. Thus, patients with similar Hcy levels to controls on day 0 showed significantly higher levels on days 2, 5, 7, 9, and 11 post-infarction than on day 0. In contrast, patients with significant higher Hcy levels than controls on day 0 showed significantly lower levels on days 2, 5, 7, 9, and 11 post-infarction than on day 0.
  
  
  CONCLUSIONS
  Different behaviors of Hcy levels in MI patients might correspond to a history or absence of history of asymptomatic myocardial ischemia. Further research is required to test this hypothesis.
authors.affiliation: Department of Cardiovascular Surgery, La Princesa University Hospital s/n, Madrid, Spain.
authors.forename: Alvaro
authors.initials: A
authors.lastname: Osorio
authors.forename: Esperanza
authors.initials: E
authors.lastname: Ortega
authors.forename: Estrella
authors.initials: E
authors.lastname: Ruiz-Requena
mesh_terms: D000368:Aged; D006710:Homocysteine / Q000097:blood*; D006801:Humans; D008297:Male; D008875:Middle Aged; D008954:Models, Biological; D009203:Myocardial Infarction / Q000097:blood*; D012307:Risk Factors; D013997:Time Factors
chemical_list: D006710:Homocysteine