PMID- 15146350 OWN - NLM STAT- MEDLINE DCOM- 20041008 LR - 20131121 IS - 0303-4240 (Print) IS - 0303-4240 (Linking) VI - 151 DP - 2004 TI - The epithelial sodium channel: from molecule to disease. PG - 93-107 AB - Genetic analysis has demonstrated that Na absorption in the aldosterone-sensitive distal nephron (ASDN) critically determines extracellular blood volume and blood pressure variations. The epithelial sodium channel (ENaC) represents the main transport pathway for Na+ absorption in the ASDN, in particular in the connecting tubule (CNT), which shows the highest capacity for ENaC-mediated Na+ absorption. Gain-of-function mutations of ENaC causing hypertension target an intracellular proline-rich sequence involved in the control of ENaC activity at the cell surface. In animal models, these ENaC mutations exacerbate Na+ transport in response to aldosterone, an effect that likely plays an important role in the development of volume expansion and hypertension. Recent studies of the functional consequences of mutations in genes controlling Na+ absorption in the ASDN provide a new understanding of the molecular and cellular mechanisms underlying the pathogenesis of salt-sensitive hypertension. FAU - Schild, L AU - Schild L AD - Department of Pharmacology and Toxicology, University of Lausanne, Rue du Bugnon 27, 1005 Lausanne, Switzerland. Laurent.Schild@ipharm.unil.ch LA - eng PT - Journal Article PT - Review DEP - 20040514 PL - Germany TA - Rev Physiol Biochem Pharmacol JT - Reviews of physiology, biochemistry and pharmacology JID - 0434624 RN - 0 (Epithelial Sodium Channels) RN - 0 (Salts) RN - 0 (Sodium Channels) RN - 4964P6T9RB (Aldosterone) RN - 9DLQ4CIU6V (Proline) RN - 9NEZ333N27 (Sodium) SB - IM MH - Aldosterone/metabolism MH - Amino Acid Motifs MH - Animals MH - Biological Transport MH - Epithelial Sodium Channels MH - Humans MH - Kidney/metabolism MH - Mutation MH - Proline/chemistry MH - Salts/pharmacology MH - Sodium/metabolism MH - Sodium Channels/*metabolism/*physiology RF - 85 EDAT- 2004/05/18 05:00 MHDA- 2004/10/09 09:00 CRDT- 2004/05/18 05:00 PHST- 2004/05/18 05:00 [pubmed] PHST- 2004/10/09 09:00 [medline] PHST- 2004/05/18 05:00 [entrez] AID - 10.1007/s10254-004-0023-7 [doi] PST - ppublish SO - Rev Physiol Biochem Pharmacol. 2004;151:93-107. doi: 10.1007/s10254-004-0023-7. Epub 2004 May 14.