Electrolyte homeostasis and systemic acid-base balance

Electrolyte homeostasis and systemic acid-base balance refer to the physiological maintenance of ion concentrations and pH levels within the body's internal environment (StatPearls, 2023). This system is critical for maintaining cellular membrane potentials, enzymatic activities, and overall metabolic function (NIH, 2022). Regulation is primarily achieved through the coordinated actions of the renal system, which manages the excretion of hydrogen ions and reabsorption of bicarbonate, and the respiratory system, which regulates carbon dioxide levels (Wikipedia, 2024). While this term describes a systemic state rather than a single molecular target, it is the therapeutic objective for many drugs, including diuretics and alkalizing agents (Merck Manual, 2023). Disruptions in this balance are associated with significant morbidity and mortality in conditions such as chronic kidney disease, heart failure, and acute respiratory distress (PubMed, 2023).

Other names

Acid-base homeostasisElectrolyte balancepH regulationFluid and electrolyte balanceAcid-base status

Pharmacological agents do not target this systemic state directly but rather modulate it by inhibiting or activating specific molecular components such as ion transporters (e.g., NKCC2, NCC), enzymes (e.g., Carbonic anhydrase), or hormone receptors (e.g., Mineralocorticoid receptor) to alter the renal excretion and reabsorption of electrolytes and buffers (StatPearls, 2023; PubChem, 2024).