SXR rs3842689: a prognostic factor for steroid sensitivity or resistance in pediatric idiopathic nephrotic syndrome

Author:

Turolo Stefano1,Edefonti Alberto1,Lepore Marta1,Ghio Luciana1,Cuzzoni Eva2,Decorti Giuliana2,Pasini Andrea3,Materassi Marco4,Malaventura Cristina5,Pugliese Fabrizio6,Montini Giovanni17

Affiliation:

1. Pediatric Nephrology & Dialysis, Milano. Fondazione IRCCS Cà Grande Ospedale Maggiroe Policlinico, Italy

2. Università degli Studi di Trieste Dipartimento di Scienze della Vita, Trieste, Friuli-Venezia Giulia, Italy

3. Università degli Studi di Bologna Azienda Ospedaliera Sant/’Orsola-Malpighi, Bologna, Emilia-Romagna, Italy

4. Ospedale Pediatrico Meyer Firenze, Toscana, Italy

5. Università degli Studi di Ferrara, Medical Science Ferrara, Emilia-Romagna, Italy

6. Agenzia sanitaria e sociale regionale Regione Emilia-Romagna, Ravenna, Emilia-Romagna, Italy

7. Università degli Studi di Milano, Department of Clinical Sciences and Community Health, Milan, Italy

Abstract

Aim: of the study was to analyse the impact of SXR rs3842689 polymorphism on the response to corticosteroids in pediatric idiopathic nephrotic syndrome. Patients & methods: 66 children (56 steroid-sensitive, ten steroid-resistant) were studied for SXR gene polymorphism distribution. Results: Steroid sensitive patients accounted for 96% of cases with In/In polymorphism, but only for 53% of cases with Del/Del polymorphism At odds ratio analysis, Del/Del represented a clear risk factor of steroid resistance (OR: 20.57; p = 0.009), while In/In was a favourable prognostic factor of steroid sensitivity. Conclusion: The analysis of SXR polymorphism is a promising tool to predict both the favourable response to corticosteroids and the risk of developing steroid resistance.

Publisher

Future Medicine Ltd

Subject

Pharmacology,Genetics,Molecular Medicine

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