期刊
JOURNAL OF THE AMERICAN SOCIETY OF NEPHROLOGY
卷 21, 期 11, 页码 1842-1845出版社
AMER SOC NEPHROLOGY
DOI: 10.1681/ASN.2010050457
关键词
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Pseudohypoaldosteronism (PHA) types I and II are curious genetic disorders that share hyperkalemia as a predominant finding Together they have become windows to understanding new molecular physiology in the kidney Autosomal recessive PHAI results from mutations in the epithelial sodium channel (ENaC) whereas autosomal dominant PHAI is characterized by mutations in the mineralocorticoid receptor PHAII is the result of mutations in a family of serine-threonine kinases called with-no-lysine kinases (WNK)1 and WNK4 WNK4 negatively regulates the NaCl cotransporter (NCC), and PHAII mutations in WNK4 abrogate this affect WNK4 also regulates the expression or function of renal outer medullary potassium (ROMK) channels, ENaCs, and Cl transporters WNK1 also regulates NCC and ROMK Aldosterone inactivates WNK1 and WNK4 activity Whether angiotensin II can fine tune the actions of aldosterone is still unclear
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