Role of Magnesium in Parathyroid Physiology

Magnesium (Mg2+) is a divalent cation that is essential for numerous physiologic processes. Ninety-nine percent of it is contained in the intracellular compartment, while 1 % is found in the extracellular fluid. Maintenance of total serum Mg2+ within a narrow range (0.70-1.1 mmol/L) is dependent on the coordinated actions of the kidneys, gut and bone. Ninety percent of intestinal absorption and renal reabsorption of Mg2+ occurs passively via …