Increased sodium and water excretion

Increased sodium and water excretion is a renal physiological response mediated by multiple molecular systems, primarily by decreasing the reabsorption of sodium and water along the nephron. It is clinically targeted by diuretics, which modulate the activity of channels and transporters such as NKCC2 in the thick ascending limb, NCC in the distal convoluted tubule, and the epithelial sodium channel (ENaC) in the collecting duct. This process helps regulate extracellular fluid volume, blood pressure, and correct volume overload states such as heart failure and edema. Because the term represents a process or outcome rather than a discrete molecular entity, it is not a valid canonical therapeutic target.

Other names

Natriuresisdiuresisrenal sodium and water excretionsalt and water excretion

Inhibition of sodium reabsorption in different nephron segments; Blockade of transporters like Na-K-2Cl cotransporter (NKCC2), Na-Cl cotransporter (NCC); Antagonism of aldosterone or vasopressin signaling