Excessive accumulation of adipose tissue is associated with profound altera
tions in the cardiovascular system, including an increase in systemic blood
pressure. It now appears clear that a central feature of obesity-associate
d hypertension is related to changes in sodium handling that may result fro
m abnormalities in sym-pathetic nervous system activity, the renin-angioten
sin-aldosterone system, natriuretic peptides, and kidney function. In this
paper we review the role of these factors in the development of obesity-ass
ociated hypertension, thereby focusing on the potential role of adipose tis
sue in these alterations.