PMID: 18214127Jan 25, 2008Paper

Decreased infiltration of macrophages and inhibited activation of nuclear factor-kappa B in blood vessels: a possible mechanism for the anti-atherogenic effects of losartan

Acta Cardiologica
Hong-Xin XuJun Peng

Abstract

Short-term administration of losartan reduced the aortic surface lesion area and mean intimal thickness. The mechanisms for reducing atherosclerotic progression by losartan may be related to decreased macrophage proliferation and accumulation in the arterial wall, decreased activation of nuclear factor-kappa B and expression of its target gene ICAM-I. Recent studies suggest that angiotensin II (Ang II) may contribute to the vascular inflammatory response and atherosclerosis. Losartan is a specific AT1 receptor antagonist which can effectively inhibit the effects of Ang II. However, the effects of losartan on atherogenesis have been rarely demonstrated. We designed this study to investigate the effects of short-term administration of losartan on atherosclerotic lesions in the aorta from rabbits fed a cholesterol-enriched diet and the possible mechanisms of its anti-atherogenic effects. The rabbits were randomly divided into three groups: (a) cholesterol group; (b) losartan-treated group; (c) normal control group. We observed that mean serum lipid levels in the cholesterol group were significantly higher than those in normal control rabbits, while blood pressure between two groups did not change significantly. Treatment with losa...Continue Reading

Citations

Jun 5, 2010·Current Hypertension Reports·Cheryl L Laffer, Fernando Elijovich
Nov 26, 2010·Nature Reviews. Nephrology·Valentina KonSergio Fazio
Sep 15, 2009·Journal of Neuroimmunology·F LühderR A Linker
May 5, 2009·American Journal of Physiology. Heart and Circulatory Physiology·Raquel LargoGabriel Herrero-Beaumont

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