A minimum level of blood pressure is necessary for atherosclerosis to
develop, even in the presence of hypercholesterolemia. Experimentally
and clinically we have both examples of atherosclerosis in which hyper
cholesterolemia is the dominant pathogenetic factor and others in whic
h hypertension prevails (BBWT). The pathogenetic role of hypertension
may be direct (wall stress) or mediated through humoral factors which
characterize the different types of hypertension (renin, angiotensin,
cathecholamines, endothelin, aldosterone). Probably, different forms o
f atherosclerosis will be identified in the future, with a different p
rognosis and therapeutical approach.