Besouw, MTP;
Kleta, R;
Bockenhauer, D;
(2019)
Bartter and Gitelman syndromes: questions of class.
Pediatric Nephrology
10.1007/s00467-019-04371-y.
(In press).
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Abstract
Bartter and Gitelman syndromes are rare inherited tubulopathies characterized by hypokalaemic, hypochloraemic metabolic alkalosis. They are caused by mutations in at least 7 genes involved in the reabsorption of sodium in the thick ascending limb (TAL) of the loop of Henle and/or the distal convoluted tubule (DCT). Different subtypes can be distinguished and various classifications have been proposed based on clinical symptoms and/or the underlying genetic cause. Yet, the clinical phenotype can show remarkable variability, leading to potential divergences between classifications. These problems mostly relate to uncertainties over the role of the basolateral chloride exit channel CLCNKB, expressed in both TAL and DCT and to what degree the closely related paralogue CLCNKA can compensate for the loss of CLCNKB function. Here, we review what is known about the physiology of the transport proteins involved in these disorders. We also review the various proposed classifications and explain why a gene-based classification constitutes a pragmatic solution.
Type: | Article |
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Title: | Bartter and Gitelman syndromes: questions of class |
Open access status: | An open access version is available from UCL Discovery |
DOI: | 10.1007/s00467-019-04371-y |
Publisher version: | https://doi.org/10.1007/s00467-019-04371-y |
Language: | English |
Additional information: | This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http:// creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made |
Keywords: | Bartter syndrome . Gitelman syndrome . EAST syndrome . Tubulopathy . Metabolic alkalosis . Hypokalaemia |
UCL classification: | UCL UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Medical Sciences UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Medical Sciences > Div of Medicine UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Medical Sciences > Div of Medicine > Renal Medicine |
URI: | https://discovery.ucl.ac.uk/id/eprint/10081167 |
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