Related Experiment Video
Updated: Aug 26, 2026

Recording of Inward Rectifying K+ Currents in Freshly Isolated Basilar Artery Smooth Muscle Cells by Patch Clamp Technique
Published on: February 7, 2025
Potassium in hypertension
1Division of Cardiovascular Medicine, University of Michigan, 3918 Taubman Center, Ann Arbor, MI 48109, USA. delgadoc@umich.edu
Abstract:
Potassium is the most important ion in the living cell, affecting almost every cellular function. Numerous clinical and epidemiologic studies support the knowledge that potassium is a fundamental factor in blood pressure regulation. The role of potassium in blood pressure regulation is reviewed in this article, focusing on its impact on the vascular vessel and the kidney, which are tissues strongly affected by potassium balance. The role of potassium on nitric oxide synthesis and superoxide formation is analyzed. Finally, the study of cell potassium as a marker for hypertension is discussed.
Related Concept Videos
Antihypertensive Drugs: Potassium-Sparing Diuretics
Hypertension and Regulation of Blood Pressure
Regulation of Sodium and Potassium
Sodium Regulation
Sodium ions make up approximately 90% of extracellular cations, with a normal blood plasma concentration of 136–148 mEq/L. A decrease in blood volume and pressure triggers the release of renin from granular cells in the juxtaglomerular complex (JGC), primarily in...
Antihypertensive Drugs: Action of β1 Blockers
Hypertension II: Pathophysiology
Hypertension I: Introduction