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Inicio Clínica e Investigación en Arteriosclerosis Lipoproteínas de alta densidad y regresión de la arteriosclerosis: desde la te...
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Vol. 22. Núm. S1.
Jornada sobre HDL
Páginas 26-30 (abril 2010)
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Vol. 22. Núm. S1.
Jornada sobre HDL
Páginas 26-30 (abril 2010)
Jornada sobre HDL
Acceso a texto completo
Lipoproteínas de alta densidad y regresión de la arteriosclerosis: desde la teoría hasta la imagen
High-density lipoprotein and arteriosclerosis regression: from theory to imaging studies
Visitas
3366
B. Ibáñez
Centro Nacional de Investigaciones Cardiovasculares Carlos III, Hospital Clínico San Carlos, Madrid, España
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Bibliografía
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Resumen

La aterotrombosis (aterosclerosis y sus complicaciones trombóticas) se caracteriza por el acúmulo de lípidos y células inflamatorias en la pared de vasos de mediano y gran calibre. Las lipoproteínas asociadas al colesterol juegan un papel central en la homeostasis de la placa de ateroma, siendo la lipoproteína de alta densidad (HDL) la responsable de la salida del colesterol y de su transporte al hígado para su ulterior excreción. El desarrollo de nuevas técnicas de imagen ha permitido documentar de forma longitudinal los cambios en el volumen de placa. Si bien no hay evidencia directa, datos indirectos confirman que la regresión del volumen de la placa puede asociarse a una disminución de episodios cardiovasculares. Por este motivo, la regresión de la placa/ausencia de progresión se utiliza como un objetivo subrogado con frecuencia creciente. De todas las terapias antiateroscleróticas testadas, el incremento de la HDL por diferentes abordajes es el que ha resultado más eficaz en regresar el volumen de placas de ateroma.

Palabras clave:
Aterotrombosis
Regresión de placa
HDL
Apo A-I
Resonancia magnética
Abstract

Atherothrombosis (atherosclerosis and its thrombotic complications) is characterized by the accumulation of lipids and inflammatory cells in the walls of intermediate- and largecaliber vessels. The lipoproteins associated with cholesterol play a central role in homeostasis of the atheroma plaque while high-density lipoproteins (HDL) play a critical role in cholesterol efflux and cholesterol transport to the liver for subsequent excretion. The development of new imaging techniques has allowed changes in plaque volume to be documented longitudinally. Although there is no direct evidence, indirect data confirm that regression of plaque volume can be associated with a reduction in cardiovascular events. For this reason, plaque regression/absence of progression is increasingly used as a surrogate objective. Of all the antiatherosclerotic therapies tested, the increase in HDL by distinct approaches is the most effective in reducing atheroma plaque volume.

Keywords:
Atherothrombosis
Plaque regression
HDL
ApoA-1
Magnetic resonance
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Copyright © 2010. Sociedad Española de Arteriosclerosis y Elsevier España S.L.
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