[Distribution of sodium in the tissues in experimental salt hypertension]

The distribution of sodium in the aortal wall, myocardium and skin of rats was studied by a tracer technique. An increase of the bound fraction of extracellular sodium was found in the aortal wall and skin of rats with hypertension produced by a 90-day salt load. A positive correlation was found between the content of bound sodium in the aorta and the arterial pressure level.