Effect of indomethacin on aldosterone secretion in chronic sodium depletion.

Aldosterone secretion rate was determined in sodium repleted and sodium depleted rats 3 to 5 hours hypophysectomy. Sodium depletion was performed by keeping the rats on wheat for six days. This diet resulted in a significant increase in aldosterone secretion rate. Hypersecretion of aldosterone could be observed also after administration of indomethacin, an inhibitor of prostaglandin synthesis.