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Introduction: Cystinuria (CYS) is the most common monogenic kidney stone disease.
Methods: Starting from an unusual case of CYS associated to primary sclerosing cholangitis, inflammatory bowel disease (IBD), and autoimmune hepatitis in a young male, we carefully review the literature and propose here a working hypothesis regarding the potential risk of cystinuric patients to develop conditions due to immune system dysregulation. To corroborate this hypothesis, we retrospectively evaluate the frequency of dysimmunity in a monocentric cohort including 36 cystinuric patients compared to healthy and disease controls.
Results: CYS patients have an increased prevalence of atopic disease compared to disease controls (p = 0.03) and 16.7% of CYS subjects were diagnosed with allergic disease to a variety of antigens.
Conclusion: Further studies are needed to define the relationship between proximal tubular transport defect of CYS and dysregulated immunity.
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http://dx.doi.org/10.1159/000538213 | DOI Listing |
Urolithiasis
November 2024
Department of Urology, University of California San Francisco, San Francisco, CA, USA.
The Maillard reaction is a non-enzymatic reaction between an amino acid and carbohydrate. We hypothesized that continuous washing of cystine stones with glucose could theoretically prevent growth of an existing cystine stone or even reduce its size leading to a decrease in stone events. Sodium/Glucose Cotransporter 2 (SGLT2) inhibitors, well known for inducing glucosuria, were used to test this hypothesis in an initial series of patients.
View Article and Find Full Text PDFJ Nephrol
January 2025
Section of Nephrology, Department of Medicine, Università Degli Studi Di Verona, Verona, Italy.
Background: Cystinuria is a rare genetic disease characterized by impaired tubular transport of cystine. Clinical features of cystinuria mainly include nephrolithiasis and its complications, although cystinuric patients may present with other comorbidities. There are currently no data on bone features of patients with cystinuria.
View Article and Find Full Text PDFWorld J Urol
May 2024
GRC n°20, Groupe de Recherche Clinique sur la Lithiase Urinaire, Service d'Urologie, Hôpital Tenon, Sorbonne Université, Paris, France.
Objective: To evaluate long-term surgical and functional outcomes of cystinuric patients exclusively treated with Ureteroscopy (URS).
Methods: Data from patients treated for cystine stones at a single academic center were retrospectively analyzed. The management protocol consisted of (i) treating symptomatic or > 7 mm stones, (ii) multi-staged URS for voluminous stones, (iii) referring patients to a dedicated nephrological clinic.
Nephron
October 2024
Department of Translational Medical Science, University of Campania Luigi Vanvitelli, Naples, Italy.
Clin Kidney J
March 2024
Assistance Publique-Hôpitaux de Paris, Hôpital Européen Georges Pompidou, Service de Physiologie - Explorations fonctionnelles, Paris, France.
Background: Cystinuria is associated with a high prevalence of chronic kidney disease (CKD). We previously described a urinary inflammatory-protein signature (UIS), including 38 upregulated proteins, in cystinuric patients (Cys-patients), compared with healthy controls (HC). This UIS was higher in Cys-patients with CKD.
View Article and Find Full Text PDF