期刊
CURRENT OPINION IN NEPHROLOGY AND HYPERTENSION
卷 19, 期 5, 页码 456-462出版社
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/MNH.0b013e32833caf61
关键词
electrolyte disturbance; hypomagnesemia; inherited kidney disorders
资金
- Netherlands Organization of Scientific research [ZonMw 9120.6110, 9120.8026, NWO-CW 700.55.302]
- European Young Investigator award
- Dutch Kidney Foundation [C03.6017, C05.4106, C08.2252, C05.2134]
Purpose of review This review highlights recent advances in renal magnesium (Mg2+) handling. The understanding of the molecular processes of epithelial Mg2+ transport has expanded considerably due to the identification of novel genes involved in hypomagnesemic disorders. Recent findings Mg2+ deficiency remains one of the most common electrolyte disorders. Detailed genetic analysis of families with inherited forms of hypomagnesemia has led to the identification of new genes involved in Mg2+ homeostasis. As such, familial hypomagnesemia has been linked to mutations in the claudin-16/19 complex located in the thick ascending limb. Moreover, the pro-epidermal growth factor, the potassium channels Kv1.1 and Kir4.1, and the hepatocyte nuclear factor 1B have recently been identified as causative factors in syndromes of hereditary hypomagnesemia. These proteins play key roles in regulating electrolyte balance within the distal convoluted tubule, either by directly affecting the epithelial Mg2+ channel, transient receptor potential channel melastatin member 6, or by altering the driving force for Mg2+ influx via the channel. Summary Recent genetic and molecular studies have further elucidated the processes that govern renal Mg2+ transport and hence systemic Mg2+ balance. This has provided us with new tools to understand the molecular pathology behind hypomagnesemia.
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