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Cystine Lithiasis in the Netherlands;
Clinical and genetic aspects

- To evaluate the demographic, clinical and genetic characteristics of all known patients with a diagnosis of cystinuria and cystine nephrolithiasis in the Netherlands.- To evaluate the relationship between genotype and phenotype of all known…

Plasma oxalic acid level, renal oxalate deposition and renal transplant function

Primary Objective: * Study the relationship between the pre-transplant plasma oxalic acid level and the risk of oxalate deposition in for cause renal transplant biopsies within 6 months after renal transplantation. Secondary Objective(s): * Track…

Assessment of endogenous oxalate production and investigation of glyoxylate/oxalate pathways in primary hyperoxaluria patients and healthy subjects

Primary: Quantification of oxalate and glycine production in both healthy subjects and PH patients in order to obtain reference values for clinical trials.Secondary: To obtain more insight in the glyoxylate/oxalate pathway, and in particular the…