Journal
TRANSLATIONAL RESEARCH
Volume 212, Issue -, Pages 54-66Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.trsl.2019.06.002
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Funding
- ISCIII - Fondo Europeo de Desarrollo Regional (Fondos FEDER) [PI14/01841, PI14/01650, CP15/00129, CP15II/00027, PI17/01093, PI17/01193, PI18/00995, FI8/00261]
- Sociedad Espanola de Cardiologia (SEC)
- Fundacion SENEFRO/Sociedad Espanola de Nefrologia
- Luis Hernando Project from Fundacion Renal lingo Alvarez de Toledo (FRIAT)
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Cardiovascular risk (CVR) tends to be estimated in the short-term, which underestimates lifetime (LT)-CVR of young subjects. We determined whether LT-CVR is associated with a multimarker score of oxidative status in young adults and whether this association is independent of traditional CVR factors. Seventy-two young adults were stratified into: (1) low or (2) high LT-CVR, and (3) stable coronary artery disease (SCAD). CVR was estimated with QRisk and atherosclerotic CV disease (ASCVD) risk estimators, or second manifestations of arterial disease (SMART). Risk score. oxidative damage was determined by measuring carbonyls, oxidized LDL (oxLDL), 8-hydroxy-2'-deoxyguanosine (8-OHdG), and xanthine oxidase activity. Antioxidant defence was determined by total antioxidant capacity (TAC), catalase (CAT) activity and superoxide dismutase (SOD) activity. Multimarker scores of systemic oxidative damage (OxyScore) and antioxidant defence (AntioxyScore) were computed as standardized variables. Subjects with high LT-CVR had significantly higher levels of oxLDL, 8-OHdG, TAC, and CAT activity than subjects with low LT-CVR or with SCAD. QRisk and ASCVD estimators correlated positively with oxLDL, TAC, and CAT activity, while SMART Risk Score correlated with carbonyls and SOD activity. OxyScore and AntioxyScore were significantly higher in subjects with high LT-CVR than with low LT-CVR or with SCAD. OxyScore, but not AntioxyScore, was associated with LT-CVR independently of each traditional CVR factor. This study for the first time demonstrates a positive association between oxidative stress and the risk of first and recurrent CV events in young adults.
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