What is the role of hormones in the pathogenesis of hypomagnesemia?

Updated: Oct 30, 2020
  • Author: Tibor Fulop, MD, PhD, FACP, FASN; Chief Editor: Vecihi Batuman, MD, FASN  more...
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No single hormone has been implicated in the control of renal magnesium reabsorption. In experimental studies, a number of hormones have been shown to alter magnesium transport in the TAL. These include PTH, calcitonin, glucagon, arginine vasopressin (AVP), and the beta-adrenergic agonists, all of which are coupled to adenylate cyclase in the TAL. Postulated mechanisms include an increase in luminal positive voltage (via activation of basolateral membrane chloride conductance and NKCC2) and an increase in paracellular permeability (possibly by the phosphorylation of paracellular pathway proteins). Whether these effects have an important role in normal magnesium hemostasis remains unknown.

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