Singh, B KMehta, J L2001-07-052009-05-272001-07-052009-05-272001-07-05Singh BK, Mehta JL. Interactions between the renin-angiotensin system and dyslipidemia: relevance in atherogenesis and therapy of coronary heart disease. Indian Heart Journal. 2001 Jul-Aug; 53(4): 511-8http://imsear.searo.who.int/handle/123456789/425164 references.Hypertension and hypercholesterolemia, two major risk factors for atherosclerotic disease, frequently coexist in patients with hypertension and CAD. Data from clinical studies suggest the existence of lipoprotein-neurohormonal interactions that may adversely affect vascular structure and reactivity. Data from preclinical studies suggest that RAS may be upregulated by abnormal lipids, most likely via production of ox-LDL. On the other hand, activation of RAS leads to release of ROS and transcriptional upregulation of LDL and ox-LDL uptake in macrophages, smooth muscle cells and endothelial cells. These findings extend our understanding of the interplay among risk factors to synergistically increase cardiovascular risk, and of the anti-atherosclerotic effects of local ACE inhibition to reduce cardiovascular risk. Trials aimed at modifying RAS along with drugs lowering total- and LDL-cholesterol levels and inhibitors of oxidative modification of LDL-cholesterol will address the clinical relevance of this biological interaction.engAnimalsArteriosclerosis --physiopathologyCoronary Disease --physiopathologyHumansHyperlipidemias --physiopathologyRabbitsRenin-Angiotensin System --physiologyIn Vitro