Mayo Clinic
This study is being done to obtain samples from patients with primary hyperoxaluria, cystinuria, adenine phosphoribosyl transferase (APRT) deficiency, and Dent disease, and from their family members, for use in future research.
Biologic samples will be stored in the biobank from well characterized patients with primary hyperoxaluria, cystinuria, APRT deficiency, and Dent disease, and from their family members, for use in future research. This will help to advance our understanding of disease expression and the factors associated with kidney injury in these four diseases with the overall goal of developing new treatments to preserve kidney function and reduce nephrocalcinosis and stone formation.
Inclusion Criteria: * Diagnosis of primary hyperoxaluria (PH) meeting one or more of the following criteria: 1. Liver biopsy documenting alanine-glyoxylate aminotransferase (AGT) activity below the normal reference range confirming PH type 1 OR Liver biopsy documenting glyoxylate reductase/hydroxypyruvate reductase (GR/HPR) activity below the normal reference range confirming PH type 2 2. Molecular genetic analysis (DNA testing) confirming mutations known to cause PH type 1, PH type 2, or PH type 3 3. Urinary oxalate excretion of greater than 0.8 mmol/1.73 m2/day (\>70 mg/1.73 m2/day)…
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