Podocyturia: A Clue for the Rational Use of Amiloride in Alport Renal Disease

No specific or efficient treatment exists for Alport syndrome, an X-linked hereditary disease caused by mutations in collagen type IV, a crucial component of the glomerular basement membrane. Kidney failure is usually a major complication of the disease, and patients require renal replacement therap...

Full description

Bibliographic Details
Main Authors: Trimarchi, H., Canzonieri, R., Muryan, A., Schiel, A., Araoz, A., Paulero, M., Andrews, J., Rengel, T., Forrester, M., Lombi, F., Pomeranz, V., Iriarte, R., Zotta, E.
Format: Online
Language:English
Published: Hindawi Publishing Corporation 2016
Online Access:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4749773/
id pubmed-4749773
recordtype oai_dc
spelling pubmed-47497732016-03-03 Podocyturia: A Clue for the Rational Use of Amiloride in Alport Renal Disease Trimarchi, H. Canzonieri, R. Muryan, A. Schiel, A. Araoz, A. Paulero, M. Andrews, J. Rengel, T. Forrester, M. Lombi, F. Pomeranz, V. Iriarte, R. Zotta, E. Case Report No specific or efficient treatment exists for Alport syndrome, an X-linked hereditary disease caused by mutations in collagen type IV, a crucial component of the glomerular basement membrane. Kidney failure is usually a major complication of the disease, and patients require renal replacement therapy early in life. Microhematuria and subsequently proteinuria are hallmarks of kidney involvement, which are due to primary basement membrane alterations that mainly cause endothelial thrombosis and podocyte contraction and ulterior irreversible detachment. Commonly drug-based approaches include angiotensin-converting enzyme inhibitors and angiotensin receptor blockers, which are employed to reduce proteinuria and thus retard kidney disease progression and cardiovascular morbidity and mortality. However, as any hereditary disease, it is expressed as early as in the intrauterine life, and usually an index case is helpful to detect family-related cases. As no specific treatment exists, pathophysiologically based approaches are useful. The present case illustrates the reduction rate of urinary podocyte loss and proteinuria after amiloride administration and suggests the molecular pathways involved in Alport renal disease. Finally, podocyturia rather than proteinuria should be considered as an earlier biomarker of kidney involvement and disease progression in Alport disease. Hindawi Publishing Corporation 2016 2016-01-28 /pmc/articles/PMC4749773/ /pubmed/26942026 http://dx.doi.org/10.1155/2016/1492743 Text en Copyright © 2016 H. Trimarchi et al. https://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
repository_type Open Access Journal
institution_category Foreign Institution
institution US National Center for Biotechnology Information
building NCBI PubMed
collection Online Access
language English
format Online
author Trimarchi, H.
Canzonieri, R.
Muryan, A.
Schiel, A.
Araoz, A.
Paulero, M.
Andrews, J.
Rengel, T.
Forrester, M.
Lombi, F.
Pomeranz, V.
Iriarte, R.
Zotta, E.
spellingShingle Trimarchi, H.
Canzonieri, R.
Muryan, A.
Schiel, A.
Araoz, A.
Paulero, M.
Andrews, J.
Rengel, T.
Forrester, M.
Lombi, F.
Pomeranz, V.
Iriarte, R.
Zotta, E.
Podocyturia: A Clue for the Rational Use of Amiloride in Alport Renal Disease
author_facet Trimarchi, H.
Canzonieri, R.
Muryan, A.
Schiel, A.
Araoz, A.
Paulero, M.
Andrews, J.
Rengel, T.
Forrester, M.
Lombi, F.
Pomeranz, V.
Iriarte, R.
Zotta, E.
author_sort Trimarchi, H.
title Podocyturia: A Clue for the Rational Use of Amiloride in Alport Renal Disease
title_short Podocyturia: A Clue for the Rational Use of Amiloride in Alport Renal Disease
title_full Podocyturia: A Clue for the Rational Use of Amiloride in Alport Renal Disease
title_fullStr Podocyturia: A Clue for the Rational Use of Amiloride in Alport Renal Disease
title_full_unstemmed Podocyturia: A Clue for the Rational Use of Amiloride in Alport Renal Disease
title_sort podocyturia: a clue for the rational use of amiloride in alport renal disease
description No specific or efficient treatment exists for Alport syndrome, an X-linked hereditary disease caused by mutations in collagen type IV, a crucial component of the glomerular basement membrane. Kidney failure is usually a major complication of the disease, and patients require renal replacement therapy early in life. Microhematuria and subsequently proteinuria are hallmarks of kidney involvement, which are due to primary basement membrane alterations that mainly cause endothelial thrombosis and podocyte contraction and ulterior irreversible detachment. Commonly drug-based approaches include angiotensin-converting enzyme inhibitors and angiotensin receptor blockers, which are employed to reduce proteinuria and thus retard kidney disease progression and cardiovascular morbidity and mortality. However, as any hereditary disease, it is expressed as early as in the intrauterine life, and usually an index case is helpful to detect family-related cases. As no specific treatment exists, pathophysiologically based approaches are useful. The present case illustrates the reduction rate of urinary podocyte loss and proteinuria after amiloride administration and suggests the molecular pathways involved in Alport renal disease. Finally, podocyturia rather than proteinuria should be considered as an earlier biomarker of kidney involvement and disease progression in Alport disease.
publisher Hindawi Publishing Corporation
publishDate 2016
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4749773/
_version_ 1613537091301408768