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• W2896401105 abstract "New biomarkers could improve the predictive capacity of classic risk functions. The aims of this study were to determine the association between circulating levels of apolipoprotein A1 (apoA1), apolipoprotein B (apoB), albumin, and 25-OH-vitamin D and coronary events and to analyze whether these biomarkers improve the predictive capacity of the Framingham-REGICOR risk function. A case-cohort study was designed. From an initial cohort of 5404 individuals aged 35 to 74 years with a 5-year follow-up, all the participants who had a coronary event (n = 117) and a random group of the cohort (subcohort; n = 667) were selected. Finally, 105 cases and 651 individuals representative of the cohort with an available biological sample were included. The events of interest were angina, fatal and nonfatal myocardial infarction and coronary deaths. Case participants were older, had a higher proportion of men and cardiovascular risk factors, and showed higher levels of apoB and lower levels of apoA1, apoA1/apoB ratio, 25-OH-vitamin D and albumin than the subcohort. In multivariate analyses, plasma albumin concentration was the only biomarker independently associated with coronary events (HR, 0.73; P = .002). The inclusion of albumin in the risk function properly reclassified a significant proportion of individuals, especially in the intermediate risk group (net reclassification improvement, 32.3; P = .048). Plasma albumin levels are inversely associated with coronary risk and improve the predictive capacity of classic risk functions. La inclusión de biomarcadores en las funciones de riesgo clásicas puede mejorar la estimación del riesgo. Los objetivos del estudio son determinar la asociación entre las concentraciones de apolipoproteína A1 (apoA1), apolipoproteína B (apoB), albúmina y 25–OH-vitamina D circulantes y la incidencia de eventos coronarios y analizar si estos biomarcadores mejoran la capacidad predictiva de la función REGICOR. Estudio de cohorte de casos. De una cohorte inicial de 5.404 participantes con edades entre los 35 y los 74 años y 5 años de seguimiento, se seleccionó a todos los que presentaron un evento coronario (n = 117) y una subcohorte elegida al azar de 667 participantes. Finalmente, se incluyó a 105 casos y 651 participantes de la subcohorte con muestra biológica disponible. Los eventos de interés fueron la aparición de angina, infarto de miocardio mortal o no mortal y muerte por enfermedad coronaria. Los casos eran de más edad, tenían mayores proporciones de varones y factores de riesgo clásicos y concentraciones de apoB, y menores concentraciones de apoA1, cociente apoA1/apoB, 25-OH-vitamina D y albúmina que el grupo control. Al ajustar por los factores de riesgo clásicos, el único biomarcador que mantuvo la asociación con eventos coronarios fue la albúmina plasmática (HR = 0,73; p = 0,002). Además, las concentraciones de albúmina permitieron reclasificar correctamente a un número significativo de participantes, especialmente en la categoría de riesgo moderado (mejora neta en la reclasificación = 32,3; p = 0,048). La albúmina plasmática se asocia independiente e inversamente con el riesgo de eventos coronarios y mejora la capacidad predictiva de la función de riesgo REGICOR." @default.
• W2896401105 created "2018-10-26" @default.
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• W2896401105 date "2018-11-01" @default.
• W2896401105 modified "2023-10-18" @default.
• W2896401105 title "Analysis of Plasma Albumin, Vitamin D, and Apolipoproteins A and B as Predictive Coronary Risk Biomarkers in the REGICOR Study" @default.
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• W2896401105 doi "https://doi.org/10.1016/j.rec.2018.01.027" @default.
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