Magnesium Handling in the Kidney.

Adv Chronic Kidney Dis

Department of Molecular and Integrative Physiology, University of Kansas Medical Center, Kansas City, KS; Kidney Institute, University of Kansas Medical Center, Kansas City, KS. Electronic address:

Published: May 2018

Magnesium is a divalent cation that fills essential roles as regulator and cofactor in a variety of biological pathways, and maintenance of magnesium balance is vital to human health. The kidney, in concert with the intestine, has an important role in maintaining magnesium homeostasis. Although micropuncture and microperfusion studies in the mammalian nephron have shone a light on magnesium handling in the various nephron segments, much of what we know about the protein mediators of magnesium handling in the kidney have come from more recent genetic studies. In the proximal tubule and thick ascending limb, magnesium reabsorption is believed to occur primarily through the paracellular shunt pathway, which ultimately depends on the electrochemical gradient setup by active sodium reabsorption. In the distal convoluted tubule, magnesium transport is transcellular, although magnesium reabsorption also appears to be related to active sodium reabsorption in this segment. In addition, evidence suggests that magnesium transport is highly regulated, although a specific hormonal regulator of extracellular magnesium has yet to be identified.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6932629PMC
http://dx.doi.org/10.1053/j.ackd.2018.01.003DOI Listing

Publication Analysis

Top Keywords

magnesium handling
12
magnesium
11
handling kidney
8
magnesium reabsorption
8
active sodium
8
sodium reabsorption
8
magnesium transport
8
kidney magnesium
4
magnesium divalent
4
divalent cation
4

Similar Publications

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!