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Permanent URL to this publication: http://dx.doi.org/10.5167/uzh-51704

Kistler, A D; Siwy, J; Breunig, F; Jeevaratnam, P; Scherl, A; Mullen, W; Warnock, D G; Wanner, C; Hughes, D A; Mischak, H; Wüthrich, R P; Serra, A L (2011). A distinct urinary biomarker pattern characteristic of female Fabry patients that mirrors response to enzyme replacement therapy. PLoS ONE, 6(6):e20534.

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Female patients affected by Fabry disease, an X-linked lysosomal storage disorder, exhibit a wide spectrum of symptoms, which renders diagnosis, and treatment decisions challenging. No diagnostic test, other than sequencing of the alpha-galactosidase A gene, is available and no biomarker has been proven useful to screen for the disease, predict disease course and monitor response to enzyme replacement therapy. Here, we used urine proteomic analysis based on capillary electrophoresis coupled to mass spectrometry and identified a biomarker profile in adult female Fabry patients. Urine samples were taken from 35 treatment-naïve female Fabry patients and were compared to 89 age-matched healthy controls. We found a diagnostic biomarker pattern that exhibited 88.2% sensitivity and 97.8% specificity when tested in an independent validation cohort consisting of 17 treatment-naïve Fabry patients and 45 controls. The model remained highly specific when applied to additional control patients with a variety of other renal, metabolic and cardiovascular diseases. Several of the 64 identified diagnostic biomarkers showed correlations with measures of disease severity. Notably, most biomarkers responded to enzyme replacement therapy, and 8 of 11 treated patients scored negative for Fabry disease in the diagnostic model. In conclusion, we defined a urinary biomarker model that seems to be of diagnostic use for Fabry disease in female patients and may be used to monitor response to enzyme replacement therapy.


7 citations in Web of Science®
6 citations in Scopus®
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37 downloads since deposited on 07 Dec 2011
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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:04 Faculty of Medicine > University Hospital Zurich > Clinic for Nephrology
Dewey Decimal Classification:610 Medicine & health
Deposited On:07 Dec 2011 11:52
Last Modified:05 Apr 2016 15:08
Publisher:Public Library of Science (PLoS)
Publisher DOI:10.1371/journal.pone.0020534
PubMed ID:21698285

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