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Proteinas matricelulares y ateroesclerosis coronaria: relación de sus niveles plasmáticos con la presencia de calcio coronario demostrado por TC

Authors: Muñoz San Jose, Juan Carlos; Redondo Bermejo, Belén; Tapia Ballesteros, Cristina; Alonso Castillejo, Nuria; Martín, Rubén; Gallardo, Isabel; Hernández, Marita; +3 Authors

Proteinas matricelulares y ateroesclerosis coronaria: relación de sus niveles plasmáticos con la presencia de calcio coronario demostrado por TC

Abstract

[Introducción]: La matriz extracelular (MEC) es una asociación de distintos tipos de macromoléculas, que contribuyen a la formación, progresión y calcificación de la placa aterosclerótica. En los últimos años, los niveles séricos de varias proteínas vinculadas al remodelado de la MEC han demostrado tener valor pronóstico. Entre los componentes de la MEC, las proteínas matricelulares BMP-1, periostina y lisil oxidasa desempeña un papel crucial en el mantenimiento de su estabilidad y diferentes estudios han sugerido su implicación clínica en procesos de fibro-calcificación. Sin embargo, su papel como biomarcadores pronóstico en el contexto de la ateroesclerosis coronaria es menos conocido. En este ámbito, actualmente se dispone de técnicas de imagen mediante TC que permite demostrar ateroesclerosis coronaria en estadios preclínicos, expresada por la presencia de calcio (Score de Agatston).

[Resultados]: Entre los pacientes CAC+ (Score de Agatson 712±1197) y CAC- hubo diferencias en la edad media (63±10 vs 56±11; p=0,002) con similar género (varones 54% vs 46%, p=0,45). Los pacientes CAC+ presentaron niveles plasmáticos más altos de periostina, BMP-1 y LOX en comparación a los pacientes CAC- (15.18±4.10 vs 2.94±1.30 µg/ml, 12.58±2.24 vs 3.03±0.85 ng/ml, and 46.02±6.03 vs 11.71±4.00 ng/ml, respectivamente). En análisis univariados, los niveles más altos de todos los biomarcadores se asociaron con la presencia de CAC (p¿0,0001). En el análisis multivariante periostina, BMP-1 y LOX permanecieron significativos después del ajuste para los factores de riesgo cardiovascular tradicionales (p¿0,0001).

[Métodos]: Se han incluido 120 pacientes: 70 con evidencia de ateroesclerosis coronaria determinada por la presencia de calcio coronario en TC (CAC+) y 50 pacientes sin calcio (CAC-). Se analizaron datos antropométricos (IMC, perímetro abdominal) y valores de perfil lipídico (LDL, HDL, Lpa, Apo A1, ApoB). Los niveles plasmáticos de las proteínas matricelulares seleccionadas se cuantificaron mediante ELISA.

[Hipótesis y objetivos]: Determinar los niveles de BMP-1, periostina y lisil oxidasa en pacientes sin historia previa de cardiopatia isquemica sometidos a TC coronario y relacionarlos con la presencia de ateroesclerosis coronaria (calcio coronario).

[Conclusiones]: Los niveles de BMP-1, periostina y lisil oxidasa se encuentran elevados en pacientes asintomáticos con presencia de calcio coronario como expresión de ateroesclerosis coronaria, demostrada por TC.

Trabajo presentado en SEC Sevilla, celebrado en Sevilla (España) del 25 al 27 de octubre de 2018.

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This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
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This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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