title: [Oxidative stress and inflammatory markers in cocaine users with acute coronary syndrome].
abstract: OBJECTIVE
  Inflammation and oxidative stress take part in the development of the pathogenesis of acute coronary syndromes (ACS). The aim of this study was to analyze serum concentrations of high sensitivity C-reactive protein (PCR-as) and malondialdehyde (MDA) in cocaine consumer patients and ACS.
  
  
  METHODS
  We carried out a retrospective analysis of 43 patients with ACS and a positive urine test for cocaine, who were compared to a sample of 49 patients with this diagnosis and a negative test. We evaluated the clinical, laboratory, electrocardiographic and hemodynamic features.
  
  
  RESULTS
  Both groups were similar in clinical, laboratory, electrocardiographic and hemodynamic features, except those patients with ACS and a positive cocaine test who were younger and had a predominantly transient ST-segment elevation. PCR-as values were lower in the ACS and cocaine positive group (4.82+/-0.67 versus 5.34+/-0.81mg/L, p <0.0035). In contrast, MDA concentrations were higher (0.66+/-0.50 versus 0.31+/-0.09nmol/ml, p <0.0001). Likewise, in the multivariate analysis, patients with ACS and cocaine positive test were related, on an independent form, to oxidative stress.
  
  
  CONCLUSIONS
  Oxidative stress plays a major role on inflammation in the different mechanisms involving cocaine in the pathogenesis of ACS, independently of the age and cardiovascular risk factors.
authors.affiliation: Servicio de Cardiología, Hospital Universitario de Canarias, Tenerife, España. adrvdg@hotmail.com
authors.forename: Alberto
authors.initials: A
authors.lastname: Domínguez-Rodríguez
authors.forename: Pedro
authors.initials: P
authors.lastname: Abreu-González
authors.forename: Cristina
authors.initials: C
authors.lastname: Enjuanes-Grau
authors.forename: Gabriela
authors.initials: G
authors.lastname: Blanco-Palacios
authors.forename: María de Los
authors.initials: Mde L
authors.lastname: Angeles Pérez-Carrillo
authors.forename: Guillermo
authors.initials: G
authors.lastname: Burillo-Putze
mesh_terms: D054058:Acute Coronary Syndrome / Q000097:blood* / Q000150:complications / Q000378:metabolism*; D000328:Adult; D015415:Biomarkers / Q000097:blood; D002097:C-Reactive Protein / Q000032:analysis*; D019970:Cocaine-Related Disorders / Q000097:blood* / Q000150:complications / Q000378:metabolism*; D005260:Female; D006801:Humans; D007249:Inflammation / Q000097:blood* / Q000150:complications / Q000378:metabolism*; D008297:Male; D008315:Malondialdehyde / Q000097:blood*; D018384:Oxidative Stress; D012189:Retrospective Studies
chemical_list: D015415:Biomarkers; D008315:Malondialdehyde; D002097:C-Reactive Protein