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Spectrum of mutations in the renin-angiotensin system genes in autosomal recessive renal tubular dysgenesis

Gribouval, Olivier, Morinière, Vincent, Pawtowski, Audrey, Arrondel, Christelle, Sallinen, Satu-Leena, Saloranta, Carola, Clericuzio, Carol, Viot, Géraldine, Tantau, Julia, Blesson, Sophie, Cloarec, Sylvie, Machet, Marie Christine, Chitayat, David, Thauvin, Christelle, Laurent, Nicole, Sampson, Julian Roy, Bernstein, Jonathan A, Clemenson, Alix, Prieur, Fabienne, Daniel, Laurent, Levy-Mozziconacci, Annie, Lachlan, Katherine, Alessandri, Jean Luc, Cartault, François, Rivière, Jean Pierre, Picard, Nicole, Baumann, Clarisse, Delezoide, Anne Lise, Belar Ortega, Maria, Chassaing, Nicolas, Labrune, Philippe, Yu, Sui, Firth, Helen, Wellesley, Diana, Bitzan, Martin, Alfares, Ahmed, Braverman, Nancy, Krogh, Lotte, Tolmie, John, Gaspar, Harald, Doray, Bérénice, Majore, Silvia, Bonneau, Dominique, Triau, Stéphane, Loirat, Chantal, David, Albert, Bartholdi, Deborah, Peleg, Amir, Brackman, Damien, Stone, Rosario, DeBerardinis, Ralph, Corvol, Pierre, Michaud, Annie, Antignac, Corinne and Gubler, Marie Claire 2012. Spectrum of mutations in the renin-angiotensin system genes in autosomal recessive renal tubular dysgenesis. Human Mutation 33 (2) , pp. 316-326. 10.1002/humu.21661

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Autosomal recessive renal tubular dysgenesis (RTD) is a severe disorder of renal tubular development characterized by early onset and persistent fetal anuria leading to oligohydramnios and the Potter sequence, associated with skull ossification defects. Early death occurs in most cases from anuria, pulmonary hypoplasia, and refractory arterial hypotension. The disease is linked to mutations in the genes encoding several components of the renin–angiotensin system (RAS): AGT (angiotensinogen), REN (renin), ACE (angiotensin-converting enzyme), and AGTR1 (angiotensin II receptor type 1). Here, we review the series of 54 distinct mutations identified in 48 unrelated families. Most of them are novel and ACE mutations are the most frequent, observed in two-thirds of families (64.6%). The severity of the clinical course was similar whatever the mutated gene, which underlines the importance of a functional RAS in the maintenance of blood pressure and renal blood flow during the life of a human fetus. Renal hypoperfusion, whether genetic or secondary to a variety of diseases, precludes the normal development/ differentiation of proximal tubules. The identification of the disease on the basis of precise clinical and histological analyses and the characterization of the genetic defects allow genetic counseling and early prenatal diagnosis.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Medicine
Subjects: Q Science > QH Natural history > QH426 Genetics
R Medicine > R Medicine (General)
Uncontrolled Keywords: renal tubular dysgenesis; renin–angiotensin system; ACE; AGT; REN; AGTR1
Publisher: Wiley-Blackwell
ISSN: 1059-7794
Last Modified: 04 Jun 2017 04:37

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