Nephrocalcinosis (Enamel Renal Syndrome) Caused by Autosomal RecessiveFAM20AMutations

Jaureguiberry, Graciana, De la Dure-Molla, Muriel, Parry, David, Quentric, Mickael, Himmerkus, Nina, Koike, Toshiyasu, Poulter, James, Klootwijk, Enriko, Robinette, Steven L., Howie, Alexander J., Patel, Vaksha, Figueres, Marie-Lucile, Stanescu, Horia C., Issler, Naomi, Nicholson, Jeremy K., Bockenhauer, Detlef, Laing, Christopher, Walsh, Stephen B., McCredie, David A., Povey, Sue, Asselin, Audrey, Picard, Arnaud, Coulomb, Aurore, Medlar, Alan J., Bailleul-Forestier, Isabelle, Verloes, Alain, Le Caignec, Cedric, Roussey, Gwenaelle, Guiol, Julien, Isidor, Bertrand, Logan, Clare, Shore, Roger, Johnson, Colin, Inglehearn, Christopher, Al-Bahlani, Suhaila, Schmittbuhl, Matthieu, Clauss, François, Huckert, Mathilde, Laugel, Virginie, Ginglinger, Emmanuelle, Pajarola, Sandra, Spartà, Giuseppina, Bartholdi, Deborah, Rauch, Anita, Addor, Marie-Claude, Yamaguti, Paulo M., Safatle, Heloisa P., Acevedo, Ana Carolina, Martelli-Júnior, Hercílio, dos Santos Netos, Pedro E., Coletta, Ricardo D., Gruessel, Sandra, Sandmann, Carolin, Ruehmann, Denise, Langman, Craig B., Scheinman, Steven J., Ozdemir-Ozenen, Didem, Hart, Thomas C., Hart, P. Suzanne, Neugebauer, Ute, Schlatter, Eberhard, Houillier, Pascal, Gahl, William A., Vikkula, Miikka, Bloch-Zupan, Agnès, Bleich, Markus, Kitagawa, Hiroshi, Unwin, Robert J., Mighell, Alan, Berdal, Ariane and Kleta, Robert (2012) Nephrocalcinosis (Enamel Renal Syndrome) Caused by Autosomal RecessiveFAM20AMutations Nephron Physiology, 122 (1-2). pp. 1-6. DOI 10.1159/000349989.

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Supplementary data:



Calcium homeostasis requires regulated cellular and interstitial systems interacting to modulate the activity and movement of this ion. Disruption of these systems in the kidney results in nephrocalcinosis and nephrolithiasis, important medical problems whose pathogenesis is incompletely understood.

We investigated 25 patients from 16 families with unexplained nephrocalcinosis and characteristic dental defects (amelogenesis imperfecta, gingival hyperplasia, impaired tooth eruption). To identify the causative gene, we performed genome-wide linkage analysis, exome capture, next-generation sequencing, and Sanger sequencing.

All patients had bi-allelic FAM20A mutations segregating with the disease; 20 different mutations were identified.

This autosomal recessive disorder, also known as enamel renal syndrome, of FAM20A causes nephrocalcinosis and amelogenesis imperfecta. We speculate that all individuals with biallelic FAM20A mutations will eventually show nephrocalcinosis.

Document Type: Article
Research affiliation: Kiel University > Kiel Marine Science
OceanRep > The Future Ocean - Cluster of Excellence
Refereed: Yes
DOI etc.: 10.1159/000349989
ISSN: 1660-2137
Projects: Future Ocean
Date Deposited: 08 Mar 2017 11:07
Last Modified: 08 Mar 2017 11:07

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