Alport syndrome: a unified classification of genetic disorders of collagen IV α345: a position paper of the Alport Syndrome Classification Working Group

Clifford E. Kashtan, Jie Ding, Guido Garosi, Laurence Heidet, Laura Massella, Koichi Nakanishi, Kandai Nozu, Alessandra Renieri, Michelle Rheault, Fang Wang, Oliver Gross

Research output: Contribution to journalArticlepeer-review

191 Scopus citations

Abstract

Mutations in the genes COL4A3, COL4A4, and COL4A5 affect the synthesis, assembly, deposition, or function of the collagen IV α345 molecule, the major collagenous constituent of the mature mammalian glomerular basement membrane. These mutations are associated with a spectrum of nephropathy, from microscopic hematuria to progressive renal disease leading to ESRD, and with extrarenal manifestations such as sensorineural deafness and ocular anomalies. The existing nomenclature for these conditions is confusing and can delay institution of appropriate nephroprotective therapy. Herein we propose a new classification of genetic disorders of the collagen IV α345 molecule with the goal of improving renal outcomes through regular monitoring and early treatment.

Original languageEnglish (US)
Pages (from-to)1045-1051
Number of pages7
JournalKidney international
Volume93
Issue number5
DOIs
StatePublished - May 2018

Bibliographical note

Publisher Copyright:
© 2018 International Society of Nephrology

Keywords

  • Alport syndrome
  • chronic kidney disease
  • proteinuria

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